In her next movie, Kristen Stewart goes to bed with two men at the same time, gives both of them simultaneous hand jobs in the front seat of a car and performs oral sex on one of them while he's driving said car. She also appears topless twice, once just minutes into the movie, and spends much of the rest of her time doing drugs and robbing people.

But wait. Before you scroll down to the comments to register your disgust at Stewart's latest attempt to lead the nation's youth into a ditch of vice and vulgarity, try to imagine any of her fellow Millennial über-celebrities giving a performance as brave, or as powerful, as the one Stewart delivers in "On the Road," a new adaptation of Jack Kerouac's famous novel, directed by Walter Salles ("The Motorcycle Diaries").

For Taylor Swift, edgy is writing a breakup song and encouraging her fans to figure out who she's talking about. For Miley Cyrus, it's letting her side boob hang out. For Kim Kardashian, it's dating Kanye West and daring the world to decide if the whole thing is one giant put-on.

Is Kristen Stewart the only major celebrity of her generation who also happens to be a true artist?

It's certainly telling that she chose to make her big post-scandal comeback at last night's North American premiere of "On the Road," which took place at the Toronto International Film Festival. It was her first outing since photos of her fooling around with director Rupert Sanders blew her fairytale romance with Robert Pattinson to bits. And while it's possible Stewart was contractually obliged to support the film, the decision to spend an hour communing with her fans and answering questions from the press had to be hers. Again and again, she told reporters that she would be just as happy to be there promoting "Twilight," but I wonder. I suspect it's important to her to remind the world that she's more than just a twinkling star in the celebrity-weekly firmament. She's a real actress.

Like her contemporary Shia LaBeouf, Stewart gets a lot of flak from people who can't stand her zillion-dollar franchise. I won't claim to be a "Twilight" fan, but I'm consistently impressed by Stewart's work in what you might call more "serious" films, and "On the Road" is no exception.

This is definitely an "On the Road" for our times, directed by a Brazilian Boomer for a global audience of Millennials. The film doesn't shy away from the destruction that Kerouac's speed-demon hero, Dean Moriarty (Garrett Hedlund), wreaked on those around him, and, as a result, the women register with far more impact than they do in the book. Kirsten Dunst plays Dean's second wife, Camille, as an arrogant princess whose dreams fall victim to her man's wanderlust, but it's Stewart who steals a sizeable portion of the film. Not in a showy way -- it's remarkable how much time this massive global superstar spends in the back seat, literally and figuratively. But hers is a bold, brave, indelible performance. When we first see her, she's topless on a bed, shaking off her sexual afterglow so she can roll a few joints for Dean's friends. "You're the only girl I've ever known who can roll tea like this," Sam Riley's Sal Paradise tells her, as smitten as the audience would be if their inner tabloid editors weren't reminding them that they're supposed to be mad at her for breaking RPattz's heart.

The toplessness itself is an extremely courageous choice for someone as famous as Stewart. There is no question that screen shots of those scenes will proliferate all across the Internet, in contexts that would make even Marylou blush. But Stewart has proven that she's the kind of actress who puts her commitment to the role above concerns like that. To some people, her self-seriousness comes off as pretentious, but I see it as her way of protecting herself from the madness that surrounds her.