Kristen Stewart

Current age: 23

Career at 20: 2010 was an especially busy year for Kristen Stewart. In March, a few weeks before Kristen's 20th birthday, The Runaways was released. That June, the third Twilight movie, The Twilight Saga: Eclipse, also hit theaters. She even took the top spot on Vanity Fair's list of highest earning female actresses of 2010.

Relationship status at 20: Although the pair hadn't yet confirmed their relationship, Kristen was linked to her Twilight costar Robert Pattinson.

Quoted at 20: In the May 2010 issue of Elle, Kristen talked about the wild side of fame. "Once somebody finds out, you have to get the hell out of wherever you are. People freak out. And the photographers, they're vicious. They're mean. They're like thugs. I don't even want to drive around by myself anymore. It's f**king dangerous."

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