Kristen Stewart says Joan Jett told her 'Runaways' secrets she can't reveal

Kristen Stewart and Dakota Fanning were having a blast earlier this week when they met the press to discuss "The Runaways."  The two "Twilight Saga" stars were reveling in being able to talk about a movie that doesn't deal with vampires and werewolves, but instead, real-life teenage rockers.  The biopic is a big step for both actresses and if a sequel were even possible, it's hard to imagine them not jumping on board.

First on this reporter's agenda, however, was getting Stewart's reaction to her debut as a presenter at the 82nd Academy Awards.  She claims she was nervous, but it doesn't seem like the huge television audience really phased her.  Perhaps that's a benefit of having thousands of screaming fans cheer you on whenever you make a public appearance.

More intriguing though were the two actors thoughts on playing rock icons Joan Jett (Stewart) and Cherie Currie (Fanning).  Stewart goes into detail about how closely she worked with Jett, an executive producer on the film, and how the legendary guitar player told her secrets about the band her life she can't reveal in interviews, but were integral to developing Jett on screen.

As for Fanning, it's amazing to see the 15-year-old growing up so quickly.  Interviewing her a little over four years ago for "Dreamer: Inspired by a True Story," Fanning has gone from an incredibly intelligent 10-year-old to a very mature teenager with a confidence beyond her years. Oh, and for the record, as great as she sounds in the movie she has no plans to sing anywhere out of character anytime soon.

You can watch the entire interview embedded in this page, or watch a larger version here.

For photos of Fanning, Stewart and their good buddy Taylor Lautner at the LA premiere of "The Runaways" Thursday night, click here.

"The Runaways" opens in semi-wide release on Friday, March 19.