Vincent Cassel, Winona Ryder and Barbara Hershey have joined Darren Aronofsky's supernatural thriller Black Swan, set in the world of the New York City Ballet, according to /Film.

They join previously announced cast members Natalie Portman and Mila Kunis.

Natalie Portman stars as Nina, a veteran ballerina who finds herself locked in to a competitive showdown with a rival dancer named Lilly (played by Mila Kunis) "with the stakes and twists increasing as the dancers approach a big performance." Nina is not sure whether her rival is a supernatural apparition or if she is having delusions.

The film will soon start production in New York City.

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