Nina Sayers (Natalie Portman) is a New York City ballerina living with her overbearing mother (Barbara Hershey). The prima ballerina Beth MacIntyre (Winona Ryder) is being replaced for the opening production of Swan Lake. Nina is the favorite, but new dancer Lily (Mila Kunis) is impressive as well. Nina fits the role of the beautiful, fearful, fragile White Swan perfectly, but she can't get the Black Swan role right unlike Lily. She's obsessed with her deteriorating body as her paranoid mind collapses.

This is a great performance from Natalie Portman. There's a sense of chaos and insanity falling down on her. It definitely has the sensibility of director Darren Aronofsky. Although I do wonder where he's going with this movie at times. It has a realism and a horror feel to the movie. Portman's body slowly turns into a horror show is reminiscent of Jeff Goldblum picking apart his body in 'The Fly'. Mila Kunis is playing a pretty interesting mean girl, or is it all in Nina's head. That's the beauty of this movie. It plays not just with Nina's mind, but the audience's mind.