According to The Hollywood Reporter Mila Kunis will be co-starring with Natalie Portman in Darren Aronofsky's Black Swan.
The supernatural film follows a talented ballerina (Portman) who dances in the New York City Ballet. She finds herself "tormented" by another dancer (Kunis) who may or may not exist. There are many interesting occurrences between them leading up to a big performance.
Black Swan will start shooting this fall in New York. Aronofksy's Protozoa Pictures will be producing along with Mike Medavoy's Phoenix Pictures.
Currently, no distributor is on board but it is believed that Fox Searchlight could take this over as the production moves forward.