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Kristen Stewart has been given the ultimate compliment by rocker Joan Jett -- who says Stewart's portrayal of her in The Runaways (opening in March) is "amazing."
"I thought she had a quiet intensity, the physical stuff," Jett told reporters. "Just the way we move in space. We shake our legs, our hands are all over. She just studied me, man."
When Jett says that Stewart studied her, she's not kidding: Since last spring, the Twilight actress has been spending all her spare time with Jett, including an all-night gabfest on New Year's. She even learned to play guitar left-handed to make her performance super-authentic.
"It's one of the most immense responsibilities to play a real person," Stewart has said. "It should just be done justice. I mean, her story's important. It's an incredibly triumphant feminist story really... So many people know her as just being like one of the coolest people to ever live and that in itself is one of the most intimidating things that I've ever had to confront but she's so cool too. She's like one of the nicest, most soulful women I've ever met. It's an honor, but it really is."
Jett, who started the all-girl punk band the Runaways when she was just 16, was awed by 19-year-old Stewart's transformation. "It was amazing... The first time I met her, her hair was still long. Then after she finished New Moon, she got it cut and I saw her out in L.A. for some rehearsals and it was really incredible. We were both laughing a lot because it's surreal."
Go here to watch Stewart in the trailer for The Runaways. To compare her to the original, check out this concert video of Jett performing her 1982 hit "I Love Rock 'n' Roll."
Plus: New Runaways Clip! Kristen Stewart Meets Dakota Fanning