The films follows the story of a ballerina named Nina in New York city. For the opening of their new season dance show that protagonist of the film happens to be the first choice but soon she finds herself with a competition. The main story showcases the backstage rivalry, artistic jealousy and a great work of art. The movie was an American psychological thriller. The film won many prestigious awards and was a box office hit.
Read the above passage and answer the given question.
Who played the role of Nina?