etoile vs black swan

An American ballerina arrives in Hungary to enroll in a ballet school and it soon becomes apparent that things are not what they seem.

 American psychological thriller film directed by Darren Aronofsky and starring Natalie Portman, Vincent Cassel, and Mila Kunis. Its plot revolves around a production of Tchaikovsky's Swan Lake ballet by a prestigious New York City company. The production requires a ballerina to play both the innocent White Swan and the sensual Black Swan. One dancer, Nina (Portman), is a perfect fit for the White Swan, while Lily (Kunis) has a personality that matches the Black Swan. When the two compete for the parts, Nina finds a dark side to herself.

Nina Sayers (Natalie Portman) is a young dancer working with a prestigious ballet company in New York City. She lives with her overbearing mother, Erica (Barbara Hershey), a failed dancer turned amateur artist who tries to control much of Nina's life.

The ballet company is preparing for a production of Swan Lake. The director, Thomas Leroy (Vincent Cassel), has to cast a new principal dancer. The lead must be able to portray both the innocent, fragile White Swan and the dark, sensual Black Swan. Nina is selected to compete for the part alongside several other dancers. The director does not intend to cast Nina as the Swan Queen. When Nina visits him to request the role, he tells her that her rigid technique makes her ideal for the White Swan, but that she lacks the passion to dance as the Black Swan. When he forces a kiss on her, she bites him. Thomas sees her potential and gives her the role.

Nina displays a number of psychotic symptoms, including strong delusions and elaborate visual hallucinations. She begins to feel paranoid that Lily, her understudy, is determined to take the lead away from her. Thomas, meanwhile, becomes increasingly critical of Nina’s “frigid” dancing as the Black Swan, and tells her that she should stop being such a perfectionist and simply lose herself in the Black Swan's role.(wikipedia)