Supposedly there’s more sex, and more nudity, in the movies today than ever before. But if there is, where is it? It’s everywhere, if you listen to people at the extreme end of the spectrum, including fundamentalists and other stay-at-home cultural know-it-alls who think they know the content of most contemporary movies even though they actually go to very few. But even longtime serious moviegoers may not have thought much about the way sex is dealt with in contemporary movies, compared with the latitude filmmakers had in the late ’60s and ’70s. Concerned parents are often troubled by a vague sense of dread about the culture in general, but they don’t always see a wide enough spectrum of movies to know exactly how sex is currently dealt with — or, more frequently, not dealt with.

The issue of nudity in the movies also comes loaded with baggage left over from feminist attitudes of the ’60s and ’70s; some women would still argue that every woman who appears nude in a movie is being objectified. And others — like the Boston Phoenix columnist who wrote an open letter to Susan Sarandon after “White Palace” came out, denouncing her for looking so good and giving such a great on-screen blow job that she only made the rest of us feel bad — use movies as lightning rods for their own insecurities. It’s convenient to denounce beautiful actresses, especially naked ones, as the natural enemy of womankind’s self-esteem. But would it be preferable to have a culture geared toward not hurting our feelings? What’s more, the women who feel most threatened may not have thought about all the ramifications that restricted nudity in the movies — or excessively Puritan attitudes toward it — could have on the art form in general.

The truth is that nudity is more of a dirty word in Hollywood than ever before. Starting with the advent of AIDS in the early 1980s, Hollywood’s attitudes toward sex in the movies have become increasingly constricted; sex is rarely dealt with as frankly or with as much freewheeling ease as it was in the movies of the ’70s. And anyone who’s followed the movie industry with even half an eye open over the past 10 years or so knows that the Motion Picture Association of America ratings board is almost completely intolerant of sex. The release of James Toback’s 1998 “Two Girls and a Guy” was held up while Toback battled the ratings board over a love scene that it said would earn the film an NC-17 rating; the board accepted the scene after Toback ended up making a few barely perceptible cuts, but the episode is indicative of how hard the MPAA is willing to dig its heels in when it comes to issues of sex.

There are probably plenty of people who simply say, So what? Who cares if there are fewer exposed body parts to look at in the movie theaters, especially in an age when too much casual sex in real life is liable to kill you? Maybe we’ve circled back to a time when all we need are symbols and suggestions — a lingering fade to black, for example, to suggest that a couple are about to embark on a night of mad, passionate sex, like we used
to get in ’30s comedies. (There’s something distressingly backward, though, about making a conscious choice to handle sexual content this way
simply out of cowardice — rather than out of necessity, as was the case with moviemakers in the ’30s.) And there’s some truth to the notion that naked skin isn’t necessarily erotic by itself — you really don’t have to see everything in order to get turned on.

But the moviegoing climate in America today smacks a little too much of prudery, prissiness and, above all, fear. Nudity is handled much more gracefully and naturally in European movies, and is accepted much more casually by audiences. For an actor or actress, it’s simply part of what
goes with playing a role: Samantha Morton’s nudity in the superb 1998 English film “Under the Skin” is so essential to the character’s situation that it’s anything but shocking. The nudity we see in contemporary American movies is often so carefully and artfully shot — with sheets and blankets fastidiously arranged just so, lest we catch a forbidden glimpse of a breast or a penis — that sometimes it barely registers. There’s so much
calculation to it that it ends up having no meaning.

If female moviegoers are the ones who are made to feel uncomfortable at the sight of a naked actress on-screen, they should also consider that cultivating a climate in which women’s bodies are kept under wraps, revealed chastely and tastefully or not at all, isn’t the answer to making
them feel better — if anything, it’s only likely to make them feel more objectified. Mainstream American movies that deal with women’s sensuality (or anybody’s sensuality) in any significant way are rare, and the ones that do are either brutally misunderstood by audiences, slapped with an NC-17 rating or both — as was the case with Philip Kaufman’s 1990 “Henry and June.” The more strictures placed on filmmakers and the actors they work with — either by the ratings board, by the studios who are cowed by it or, more indirectly, by audiences — the smaller their window for portraying experiences that actually reflect our own.

The vast majority of established actresses will not do nude scenes, presumably out of fear that they won’t be taken seriously as practitioners of their craft. You can hardly blame them, given the fact that there’s a nation of moviegoers out there — many of them women — who believe that ambitious young actresses will do anything, including take all their clothes off, just to get attention. While it’s true that there’s no shortage of actresses in revealing clothing on the magazine stands, it’s
hardly fair that the amount of skin they’re willing to expose should be so readily held against them,
regardless of their talent.

Actresses can be as judgmental about their
peers as anyone. “I see these young women who are so overtly sexual,” says Reese Witherspoon in the May Allure. “The pictures they pose
for, and the outfits they wear, with their boobs pushed up like earmuffs. And it’s like, that’s wonderful, hon, when you are 20 years old, but what
will you do when you are 35 and your boobs don’t want to go that way anymore? Where does your self-worth or personal pride come from then?” That
comment is particularly depressing, and puzzling, from an actress who’s shown that it’s possible to convey straightforward sexuality
without shortchanging your brains. (She herself has done a nude scene, in “Twilight.”)

And although we’re all supposed to have gotten past judging a woman’s worth by her sexual behavior, in the minds of much of the contemporary moviegoing
public, a woman who takes her clothes off on-screen becomes something other than an actor — the word “slut” comes immediately to mind. Many moviegoers seem to expect purity out of actresses, often at the expense of other qualities (fearlessness, tenderness, the ability to read a line as if they mean it) that are far more valuable.

This isn’t to say that women should be the only actors to peel down. One of
the chief complaints of woman moviegoers is that we see don’t get to see
enough naked men, and it’s a valid one — though if you consider a man’s
penis to be the counterpart to a woman’s clitoris, you have to admit that a
man who bares everything is committing a bolder act than an actress who
merely removes her shirt. (What’s more, the freedom to do male nudity is an
even tougher battle for filmmakers and actors to fight: The ratings board
of the MPAA may be relatively tolerant of breasts, but the sight of a penis
sends it around the bend.) Women also frequently complain that the
actresses we see nude are all one “type.” While I see nothing wrong with
the aesthetic pleasures of watching a lithe young body on a movie screen, I
also recall how lovely (and how moving) I found Isabella Rossellini, with
her rounded tummy and Titian thighs, in “Blue Velvet.” And I wonder what an
actress with the presence and bearing of Camryn Manheim (of TV’s “The
Practice”) would bring to a nude love scene.

That said, though, there’s also a whiff of unfairness in the argument that
if a woman with an “imperfect” body (Kathy Bates, for instance, in “At Play
in the Fields of the Lord”) does a nude scene, it’s laudable as art, an
actress performing her craft, a different thing altogether from, say,
Sharon Stone’s sly (and, in some scenes, completely nude) performance in
“Basic Instinct.” Stone is one actress who did nude scenes earlier in her
career but who now refuses — understandable, considering that “Basic
Instinct” turned her into a marked woman. But why should actresses — young,
relatively inexperienced ones as well as those who are more seasoned — be
made to feel that the decision to strip down will weigh heavily on their
image? That’s a sure way to turn the question “To bare or not?” into one
that plays right into Hollywood’s (and movie audience’s) prudery, dragging
the focus away from the more important question of whether or not the
actors are effective in the scene.

The dividing line between those who will and won’t do nudity ends up
creating a kind of pecking order among actresses. The unspoken
understanding is that it’s only the low-rent actresses, and the desperate
newcomers, who take their clothes off. Once an actress has achieved a
certain amount of cachet, she’s much better off keeping every stitch on. I
could hardly believe it when I learned that Charlize Theron — an actress
who’d received positive notices from a number of critics for her role in
“Devil’s Advocate” and who had enough of a buzz on her to land a spot on
the cover of the terminally hype-conscious InStyle magazine — had been
featured in a nude spread in the May Playboy. It seemed to be an
unprecedented move — and a brave one — for a young actress who’d already
gained some notoriety. The perception that all hot young Hollywood
actresses are willing and eager to take it all off to jump-start their
careers is simply a fallacy. Very few actresses with healthy careers (Drew
Barrymore is the one exception who springs to mind) are willing to bare it
all in a magazine; it’s the actresses desperately trying to resuscitate
their livelihood (for instance, Judy Norton, who played Mary Ellen on “The
Waltons” and later — much later — appeared in Playboy) that you see doing nude
spreads.

The Theron pictures in Playboy were so tasteful and inoffensive — some of
them rendered in satiny black and white, focusing as much on her
magnificent legs as on her breasts (I’ve seen racier-looking photographs in
ads for women’s shaving cream) — that it would be easy enough to believe
that the actress had posed for them specifically for Playboy. But if you
read the magazine’s contributors section, you learn that the photographs
were taken during Theron’s “days as a model.” What looked like an unprecedented
move — a bold choice, a chance for an actress to prove she has no problem
admitting that her sexuality is just one of any number of appealing things about
her — was probably just another instance of “recently discovered” nude pix.
I was disappointed.

There’s something dispiriting about the way an actress’s willingness (or
not) to go nude denotes her place in the hierarchy of her peers. In a
minage ` trois scene in last year’s
“Wild Things” — a hugely enjoyable
movie, and an example of good, trashy fun that’s also intelligent,
uninhibited and witty — relative newcomer Denise Richards exposes
her breasts, while Neve Campbell, clothed chastely in a black tank top,
gets to pour champagne on them. (In the middle of all this, Matt Dillon
does the stock thing that every guy in a minage ` trois scene does: shows
how he’s barely able to contain his good fortune.) When Campbell finally
does remove her shirt, she’s shot from the back.

To be fair to Campbell, she does engage in a lengthy lesbian kiss on-screen,
and she doesn’t shrink away from her character’s nastiness. In other words,
she takes a fair amount of risk for being such a well-known actress. But
while I like both actresses’ performances in the movie, I give Richards
extra points for her chutzpah. Nude scenes are extremely difficult for
actors, presenting a special set of challenges to their skill and
professionalism. (Not to mention that many actors are likely to feel the
same shyness that most of us mere mortals feel about showing off our
bodies.) Actors and actresses often claim they choose not to do nude scenes
for personal reasons. But it’s clear their reasons are tied to more outside
factors than they’d care to admit: They may wonder whether they’ll get cast
again, or whether they’ll be expected to take their clothes off every time.
They may wonder whether they’ll be remembered for their acting in a
specific scene or simply for the fact that they appeared nude in it (an
issue that Julianne Moore, an actress with an extraordinarily broad range,
is probably all too aware of after her “bottomless” scene in Robert
Altman’s “Short Cuts”). And no actor — least of all a woman — wants to be
branded as cheap. It’s the “respectable” actors who are honored with
Oscars.

Yet there are a few small rays of hope. Nicole Kidman, an actress who has
enough clout to set her own terms, attracted a certain amount of attention
for her willingness to appear nude onstage (if only facing away from the audience) in “The
Blue Room.” And when I saw “Shakespeare in Love” last year, I could hardly
believe my eyes when I saw Gwyneth Paltrow’s breasts, in her big love
scene with Joseph Fiennes. I’ve since looked at the scene again and noticed
how easily the shots could have been reframed to keep those breasts safely
out of sight. There’s no question that they represent a conscientious
choice, both on the part of director John Madden and of Paltrow. An actress
with the visibility and critical acclaim that Paltrow had, even before her
Oscar nomination and win, doesn’t need to show anything she doesn’t
want to. And especially for someone like Paltrow — who, among the public,
seems to be more frequently maligned for her privileged upbringing and
patrician good looks than she is
evaluated as an actual actress — that
single flash of skin represents a small act of bravery. Of the current crop
of actresses, she’s probably the last one I’d have expected to reveal so
much of herself.

But she did, and now she’s got her Oscar as well. Of course, the people
who claim that actresses are baring themselves all over Hollywood are never
going to believe that she’s done anything unusual at all. They’re too busy
complaining about having to suffer the naked breasts of Michelle Pfeiffer,
Sandra Bullock and Meg Ryan in movies that somehow none of the rest of us have seen.
In the mainstream movies that most of us see, though, the ridiculously and artfully draped
sheet is still the order of the day. That’s the way it is in the movies,
exactly like that.

At that point, we didn’t yet know just how old Old Media really was. But the idea of transferring the skills and principles of Old Media onto the Web intrigued me. And even if Salon, as an online-only magazine, wasn’t “real,” the money its founder, David Talbot, was willing to pay its writers, was — the fees weren’t princely, but definitely fair, particularly for a start-up. So I made one tiny leap as a freelancer in 1996 that turned into a bigger one three years later, when I was hired at Salon full-time. My friends at the business magazine, in Boston, where I was working at the time — a job I loved but was ready to leave — urged me to rethink my decision. Salon was a start-up; it wasn’t stable. I might move to New York, where David was assembling an East Coast staff, and it could all fall apart the next day.

It didn’t, and it hasn’t, though no publication — online or in print — has had an easy time of it these past few years. When I was a journalism student in the 1980s, if you had told me that by 2010 it would be nearly impossible for a smart, experienced professional to make a living wage as a journalist or editor, I’d have accepted it only if you’d told me that by that time, we’d also be zooming around in flying cars, like the Jetsons. Journalism, as a profession, is in danger of dying; I’m still waiting for that flying car. And lest you think I’m going to hijack this space for a speech about the death of film criticism, I need to say that, realistically, the world could survive without full-time movie critics. But if dedicated, disciplined, paid journalists disappear, we’re headed for some very dark times.

Over the years Salon has strived to make a place for serious writers, editors and journalists, and it continues to do so. I’m astounded when I stop to think about the number of superb, conscientious editors with whom I’ve had the pleasure to work, and the many, many terrific, challenging writers with whom I’ve been honored to share space. They’ve humbled me and, I hope, made me better. Salon has also, I must note, always made a place for film criticism, even in times when other outlets were scaling back. In granting me this space — and in allowing me the pleasure of working with the kindest, grooviest and most generous colleague imaginable, Andrew O’Hehir — Salon has made me the most fortunate of movie critics, and even as I move on to a new adventure elsewhere on the Web, my gratitude won’t diminish.

What I’ve written so far is largely about me. But here’s where it becomes all about you. People who are paid to write can gas on all they want about the decline of their profession, but even then we sometimes forget that we’re only half of the equation. We’re nothing without readers, and at Salon I’ve found a truly passionate, engaged, challenging audience. You have often inspired me, and I hope I’ve done you justice.

So this is where, with wholly inadequate words, I say thank you: To those who have read me faithfully or even just casually; to those who have written to me personally over the years, widening my world more than you can even imagine; to those who’ve taken the time and care to leave thoughtful, well-reasoned comments instead of just doing the asshole drive-by; to those who have stolen from me (theft is the sincerest form of flattery); and most of all, to those of you who have disagreed with me, often passionately. Because as I’ve said more times than I can count, criticism isn’t about consensus, it’s about engagement. And so bravo, and brava, to you all.

Say goodbye to all that with the new 3-D “Clash of the Titans,” in which Sam Worthington’s Perseus struts around importantly in a Utilikilt, Pegasus is something of an afterthought (and is black instead of white), and Zeus and Hades are played by the Tweedledum-and-Tweedledee versions of Olivier, Liam Neeson and Ralph Fiennes. And unlike the original — which, in a crazy stroke of genius, allowed Shakespearean thespians like Claire Bloom and Maggie Smith, plus Bond babe Ursula Andress, to mix it up as jealous goddesses — the new “Clash of the Titans” is frightfully low on babes. Gemma Arterton and Alexa Davalos — as, respectively, Io and Andromeda, the two beauties who vie for Perseus’ stolid soldier’s heart — are comely enough, but there’s no sensuous glow about them. They’re eye candy, not enchantresses.

Of course, lamenting that the old “Clash” is so much better than the new one will take us only so far. Any remake has to stand on its own merits. That said, “Clash of the Titans” still sucks. The story — the script is by Travis Beacham, Phil Hay and Matt Manfredi — is unruly and unnecessarily complicated: Perseus may be the son of Zeus, but he’s been raised by human parents (played all too briefly in the movie’s early scenes by Pete Postlethwaite and Elizabeth McGovern). When they’re killed by Hades, god of the underworld, he stomps around for a bit, looking angry. Then he decides to lead a mission, with the help of some hotshot soldiers from Argos (the hottest of these is played by Mads Mikkelson; less hot is gangly, confused-looking Nicholas Hoult), to defeat the god who killed his family. Meanwhile, Neeson’s Zeus (clad in a sizzling-white, headache-inducing suit of armor) and Fiennes’ Hades (scowling as he sports the ever-popular bald head with long fringe look) duke it out over something or other. And Perseus and his crew get on with the business of fending off giant scorpions, beheading the serpent-tressed Medusa (a CGI creature modeled from the face and form of fashion model Natalia Vodianova) and, ultimately, sending the Kraken packin’.

The Kraken is big all right, and his design — a small, turtlish head perched on a gargantuan body — owes a debt, as so many modern movie creatures do, to H.R. Giger’s design for “Alien.” But this Kraken is disappointing; there’s no glamour or mystery to him. He’s overscaled and underwhelming, and even in 3-D, he lacks dimension. The director of “Clash of the Titans” is kooky Frenchman Louis Leterrier, and based on some of the intentionally over-the-top pictures he’s made in the past (including the gorgeously melodramatic “Danny the Dog”), he isn’t necessarily a bad choice to breathe new life into an old favorite. But the picture is loaded with dimwitted proving-your-manhood dialogue — “This isn’t your fight!” one of Perseus’ girlies exclaims, to which he responds, with all the expressiveness of a green-plastic army man, “Someone has to take a stand!” — and not even the picture’s aggressive special effects are enough to distract us from it. “Clash of the Titans” was converted to 3-D after it was completed, and I wonder if it wouldn’t be more enjoyable as a straightforward 2-D feature: The use of 3-D renders the action muddier and more indistinct than it might otherwise be, and the movie’s fantasy vistas, of seaside cliffs and rugged desertlike terrain, don’t look particularly distinctive in the retrofitted format.

The fact that some genius at Warner Bros. decided that a 2-D “Clash of the Titans” just wouldn’t be good enough for movie audiences — or, more likely, recognized that the extra dough moviegoers have to fork over for 3-D glasses would dramatically pad the grosses — suggests that Hollywood thinks it’s got us just where it wants us. We want spectacle at the movies, as we always have; we want action and drama and escape.

But what about everything Hollywood, with movies like this “Clash of the Titans,” is failing to give us? The movie is big all right. But where’s the magic? And where, dare I ask, is the eroticism? We barely get a kiss between Worthington and Arterton, not that I particularly wanted one. On the other hand, in the original, we see the spirit of Andromeda (played by Judy Bowker) being carried off in a golden cage by a winged beastie, as her left-behind body sleeps behind a sheer, sparkly curtain. The image is lush, unsettling, dreamily evocative. The new “Clash of the Titans” is supposed to stand for progress, and the promise of huge profits, as we purportedly stand at the forefront of a 3-D revolution. Instead it’s a symbol of everything we’ve lost. But at least it reminds us that our 2-D dreams can’t be so easily replaced.

But not all Sparks adaptations are created equal, and the latest, “The Last Song,” is less equal than most. There are a few decent performances here, most notably that of Greg Kinnear as Steve, a grizzled, beleaguered, divorced dad. But “The Last Song” — which was directed by Julie Ann Robinson, from a screenplay by Sparks and Jeff van Wie — doesn’t even work as passable, tear-loosening melodrama, and the predictable plot mechanics aren’t what make it insufferable. The big problem is Miley Cyrus.

It wasn’t so long ago that Cyrus, as normal preteen/pop star Hannah Montana, became a megastar among the sparkly purse set. And even though plenty of us may have rolled our eyes at Cyrus and her alter-ego character, there’s only so much criticism you can level at a child performer: Cyrus was a cute enough kid, and the reasons for Hannah Montana’s popularity were understandable. Young singers and actresses are by their nature unformed: It’s OK to be somewhat critical of their abilities, but part of their appeal is the idea that they’re still on their way to becoming something more.

But Cyrus is now 17, playing in the tougher arena of grown-ups, and her performance in “The Last Song” suggests she has two expressions at her disposal: Pouty and scowly. Three, if you count squinty. Cyrus plays grumpy high school graduate Ronnie (Miley Cyrus), who spends the summer at her dad’s beach house in Georgia sulking, grumbling and generally making her poor father’s life miserable. And for this she’ll be rewarded by meeting a nice, hunky blond boy, Will (Liam Hemsworth), who genuinely likes her and also happens to be rich. Conflicts will of course ensue.

When I wrote about “Hannah Montana: The Movie” last year, I couldn’t help noticing Cyrus’ vaguely blowsy quality — she seemed to have bypassed dewy, carefree teenage youth and was instead hurtling toward three-kids-and-a-McMansion matronliness. Still, she could just about pass as a kid, in a movie aimed at a pretty young audience. It seemed prudent to give her the benefit of the doubt.

But the suffering she causes in “The Last Song” is just too much. Cyrus’ speaking voice is deep instead of squeaky, which is usually a plus. But this isn’t a throaty purr we’re talking about; it’s more like a three-packs-a-day growl, and it’s gratingly unpleasant. Her diction is a slurry mess, and she speaks every line with an implicit sneer, as if everything, even the script of the movie she’s starring in, is beneath her consideration. Her expression is perpetually bored and restless, as if the only thing she’s got on her mind is getting back to her walk-in closet to assess her vast kingdom of tank tops. This is a performance with all the elegance of a bitten fingernail.

Maybe I’m expecting too much of Cyrus. But “The Last Song” rests heavily on her alleged appeal, and I can’t remember the last time I came across such a singularly charmless teenage performer. I hesitate to even use the word “actress,” because what Cyrus projects here is an unvarnished haughtiness that’s wholly disconnected from the troubled-but-feisty character she’s supposed to be playing. Even as poor pops Kinnear suffers nobly for the camera, Cyrus barrels through the movie as if she were the only person in it. She’s all ego and no alter, although we should probably be grateful we’re not dealing with a split personality here. Please, one is enough.

With “How to Train Your Dragon” — which was directed by Dean DeBlois and Chris Sanders and adapted from the book by Cressida Cowell — DreamWorks has managed to loosen the screws, at least a little. The writers — a team including DeBlois, Adam F. Goldberg, Chris Sanders, Peter Tolan — have focused more on the story than on loading it with hyper gags, and as a result the movie is both more relaxed and more focused than, for instance, DreamWorks Animation’s last picture, the cluttered and scattershot “Monsters vs. Aliens.” Hiccup (the voice of Jay Baruchel) is a brainy young Viking lad, living in a Viking village that must always be on the lookout for dangerous dragons. Hiccup’s father, the burly, bushy-bearded Stoick the Vast (Gerard Butler), is a brave dragon hunter, and the expectation is that Hiccup will follow in his footsteps. But Hiccup isn’t very good at slaying dragons. And when, one day, he encounters a wounded beastie who’s easy prey, he just can’t bring himself to do the deed. This is a good thing, because the young dragon — whom he names Toothless — becomes a loyal companion who teaches Hiccup that dragons aren’t to be feared and conquered but understood: There are benefits to sharing the world with them, instead of trying to wipe them from the face of the earth.

The picture has a tidy moral, for those who look for such things. It shows, gently enough, that received wisdom should always be questioned, and creatures (or, by extension, people) we might think of as foreign and scary are really much like us. “Everything we know about you guys is wrong,” Hiccup marvels as he comes to learn that Toothless has some very generous food-sharing impulses (he regurgitates a half-eaten fish and nudges it in Hiccup’s direction) and will fall asleep instantly if he’s scratched in a certain way.

“I looked at him, and I saw myself,” Hiccup says of Toothless in a particularly revelatory moment, though I’d hesitate to put too strict a geopolitical reading on “How to Train Your Dragon”: The formerly misunderstood dragons end up as Viking pets — beloved ones, but pets just the same. Beyond its easy-on-the-psyche message, the picture is reasonably pretty to look at. It was designed to be seen in 3-D, which means we often see Hiccup on Toothless’ back, swooping through the air above cloud-laced mountains and through artfully chiseled valleys. In one striking scene the two find themselves part of an air-traffic clog of fellow dragons of all shapes, sizes and varieties, all on their way to a mysterious somewhere.

“How to Train Your Dragon” is low on belabored gags, which makes sitting through it relatively painless (although you’ll have to suspend disbelief enough to reconcile all those Scottish accents tumbling out of Viking mouths — in addition to Butler’s voice, we also hear Craig Ferguson’s). The movie also has a strange, grim twist at the end that’s treated a little too blithely. And it reaffirms a recurring DreamWorks weakness: With one exception, the character design is uninspired. When you’ve seen one scrappy little Viking ragamuffin with a bulbous nose and half-moon smile, you’ve seen them all.

But then there’s Toothless: He may be a dragon, but with his rounded paws and panther-shaped head, there’s also something of the house cat in him — he has the same proportions of civilized dignity and wildness, as well as a tendency to express his affection in offhanded ways. (Remember that regurgitated fish?) Toothless has black Naugahyde skin that makes you want to reach out and touch it; his glowing green eyes are mischievous and appraising but not wholly unfriendly. And he doesn’t speak, which means that Hiccup — and we — must read his expression, the tilt of his ears, the way he swishes his tail, to know what he’s thinking, and even then we can’t be 100 percent sure. Toothless has the one precious ingredient that’s missing from so many of Hollywood’s contemporary animated characters: an air of mystery. For once, instead of spelling everything out for us with constant chatter, DreamWorks has gotten the knack of leaving something unsaid.

Floria Sigismondi’s “The Runaways” tells a somewhat fictionalized version of the band’s story. But even though there’s always some rock ‘n’ roll wanker — usually a guy — on hand to volunteer, “I was on the scene, and that’s not how it went down,” the best rock ‘n’ roll movies are less about strict authenticity than about capturing a vibe. And “The Runaways” gets the vibe just right, from its opening shot: As the girl who will become the Runaways’ lead singer, a superfoxy, Bowie-loving 15-year-old sunshine-blonde named Cherie Currie (Dakota Fanning), sneaks around with her twin sister, Marie (Riley Keough), to meet up with some boys, a drop of her menstrual blood hits the pavement. Shortly thereafter, the girls change from their schoolgirl knee-socks and wedgie sandals into glittery, neck-breaking platform shoes they’ve “borrowed” from their mom. These are girls who, to borrow a line Paul Westerberg put into a song many years later, are aching to be.

From there, Sigismondi — who also wrote the screenplay, partly adapted from Currie’s candid and entertaining memoir “Neon Angel” — traces the band’s rise and inevitable implosion, including a scene in which the young Joan Jett (Kristen Stewart) totes her guitar to see the school music teacher (played by Robert Romanus, Damone in “Fast Times at Ridgemont High”). After unsuccessfully trying to get her to strum a few chords of “On Top of Old Smokey,” he informs her that girls don’t play electric guitar, and you can imagine how well that goes over. Jett, obviously, persists, but the members of the band — including lead guitarist Lita Ford (Scout Taylor-Compton) and Sandy West (Stella Maeve); a fifth character named Robin (Alia Shawkat) was invented for the movie, as a way around legal restrictions surrounding the portrayal of the band’s real-life bassist, Jackie Fox — find their way to one another only with the help of skeezeball genius Fowley. As Michael Shannon plays him — almost too well — Fowley is a greasy, lizardlike operator whose single facial expression is a half-sneer, half-scowl. He rules the band by abuse: He calls the girls his “dogs” and sends them out on grueling tours without giving them enough money for food, let alone paying them an actual wage.

But even though Sigismondi doesn’t exactly gloss over Fowley’s creepitude — and even though it goes without saying that in real life, the Runaways made far too little money off their brief but blazing run, which included a deal with Mercury Records — she recognizes that focusing too much on Fowley’s exploitation of the girls would turn the movie into his story instead of theirs, focusing on their victimhood rather than their triumph. “The Runaways” is, as you’d expect, a portrait of excess, including lots of sex, drugs and rampaging groupies. But its bigger focus is on the transformative powers of rock ‘n’ roll. When Fowley strides up to Cherie in a L.A. club and croons, “I like your style,” he’s picking up on the exact out-of-sight radio signal she’s striving to send: Cherie looks great in her satiny outfit and homemade shag haircut, but it’s her attitude — her half-bored, half-expectant pout — that pushes the look into the stratosphere. Fanning’s Cherie has a “don’t mess with me” aura, but with a great deal of softness around the edges. Sigismondi is extremely conscious of the line between dewy teenage innocence and the hard-edged, used-up look that can take its place seemingly overnight.

Sigismondi — who has directed music videos for the White Stripes and Marilyn Manson — elides some parts of the band’s story and compresses others, but she keeps deft control of the picture’s overall tone: She doesn’t downplay young Cherie’s suffering, caused partly by family problems and partly by just growing up too fast, but she doesn’t waste time playing junior shrink, either. Benoît Debie’s cinematography is L.A.-tawdry when it needs to be and exuberantly glossy when the story calls for it. It is also, in places, beautifully moody and tender, particularly in the affectionate sex scene between Currie and Jett. In her book, Currie writes very simply, and with great protectiveness, about her relationship with Jett: “It ran deep, and at times she was the only one that kept me sane … How do I explain about a person that was my best friend, someone I would confide in like a sister, someone who to me became a strong, sexual attraction? Well, it’s easy … I can leave it by saying that I had moments with a friend that quake me to this day.” In the film, there’s no explicit seduction scene, not even a muted one: Sigismondi instead shows Jett and Currie almost literally drifting toward each other, bathed in low light. The sequence is brushed with tenderness and a druggy, blissed-out eroticism. Sigismondi doesn’t infantilize her subjects by making it look as if they’re merely cuddling, like coy schoolgirls. And the fact that Currie is wearing roller skates makes the moment even more touching: They’re one last vestige of little-girl innocence.

My hunch is that a lot of viewers who have watched Fanning grow up in the movies — many, but probably not all, of them men — are going to feel uncomfortable seeing her in a role that eroticizes her so frankly. But I think that discomfort speaks to the noisy shout of freedom that the Runaways sounded themselves: At what point is a little girl allowed to be not just a young woman, but her own person? Someday she’s going to demand the keys to the car, and not just literally.

That unspoken restlessness is everywhere in “The Runaways,” in the way Stewart captures Jett’s slightly hunched, long-legged stride, and in the way Fanning’s Cherie takes the stage during a show in Japan, wearing a creamy satin bustier and stockings, to sing the band’s jailbait-heartbreaker anthem “Cherry Bomb.” As the real Cherie Currie did, Fanning (who does her own singing in the film) wraps the microphone cord around her leg, only to unwrap it and whip it around again, a snake-charmer routine that’s also an obvious challenge: You think you want this, but can you handle it? That challenge isn’t just a sexual come-on: It’s a basic question about how to move forward the business of living. Teenagers aren’t ready for life, which is exactly why they want to jump in and get on with things. “The Runaways” is all about taking that leap — and being OK with the bruises after the inevitable fall.