Psychological thriller set in the American ballet world starring Natalie Portman in an award-winning performance. Nina (Portman) is a dancer in a New York City ballet company. Still living with her domineering and obsessive mother Erica (Barbara Hershey), a former ballerina herself, Nina barely has a life outside her dancing. When the company's artistic director Thomas Leroy (Vincent Cassel) decides to replace prima ballerina Beth MacIntyre (Winona Ryder) for a major new production of Swan Lake, Nina finds herself losing sight of her own identity as she becomes caught up in a twisted competitive friendship with her rival Lily (Mila Kunis). Portman won the 2011 Golden Globe, BAFTA and Academy Award for Best Actress.