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Black Swan is a 2010 psychological thriller film directed by Darren Aronofsky and starring Natalie Portman, Mila Kunis, Vincent Cassel, and Barbara Hershey. The film tells the story of a young ballerina named Nina Sayers who is chosen to star as the White Swan in Swan Lake, but becomes consumed by her desire to be perfect and loses herself in the role of the Black Swan.