Dakota Fanning and Kristen Stewart may have appeared in New Moon together, but now they’re out to prove they’re all grown up in The Runaways. They star as Joan Jett and Cherie Currie, who formed the ‘jailbait rock’ group, The Runaways, in the mid-70s, which found success before disintegrating due to the member’s rock ‘n’ roll lifestyle of drugs and excess. The first brief teaser has now arrived, and show Fanning and Stewart rocking out, in a promo that make the film seem more teen flick than it will presumably be. Click below to take a look. The film will be out early next year.