DAKOTA FANNING, 16
Doesn't ruin: The Runaways (2010), Hounddog (2007), Man On Fire (2004)
Why they don't suck: We could do without the Twilight movies, but Dakota has been legit with hers for years, as evidenced by sharing the screen with Denzel Washington (Man on Fire), Glenn Close (Nine Lives), and Robert De Niro (Hide & Seek, a train wreck that really wasn't her fault). The haunting Hounddog rape scene, where the camera focuses on her facial reaction, is not something you're gonna find on Nickelodeon.
Child version of: Sissy Spacek