Hard Candy. It has Ellen Page playing a 14yo in a cat & mouse game with a possible paedophile/murderer, and she is amazingly awesome in it. In terms of violent scenes - she's not a fist fighter, research is her weapon. And sedatives. And glad wrap. And spray bottles of cleaners. And tasers. Its a lot more clever thriller than action, but its an excellent movie & she does have some angry violent scenes.

Shattered has a cop who has left her boyfriend. He spends the whole show trying to get back with her, and in the last episode he tries to kiss her & she shoves him off, & then he hits her and she wins the ensuing scuffle then kicks him a lot while he's on the ground.