Possible New Cast Member for Natalie Portman's 'Black Swan' Revealed

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Mila Kunis, who previously played Rachel Jansen on comedy-romance film "Forgetting Sarah Marshall", is currently being considered to join Natalie Portman to star on "Black Swan". The Hollywood Reporter says the 25-year-old beauty is set to portray Lilly, who competes against Portman to prepare for a big performance.

Last month, Natalie Portman signed on to star on the thriller-supernatural film as a veteran ballerina who finds herself in a competitive situation with another dancer. Her role's sanity is questioned because it's unclear whether the rival is a supernatural apparition or simply her delusion.

The film's production will be begun in New York City in the fall. Darren Aronofsky's Protozoa Pictures is going to produce the movie along with Rick Schwartz's Overnight Prods., which will also finance the indie film. Mike Medavoy's Phoenix Pictures, in the meantime, will exec produce the movie. Helmed by Aronofsky, the flick is scheduled to be released in U.S. theaters in 2010.

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