Actress Mila Kunis is in discussions to star opposite Natalie Portman in Darren Aronofsky's supernatural drama BLACK SWAN, reports THE HOLLYWOOD REPORTER.

The film follows a talented ballerina (Portman) in the New York City Ballet who is tormented by a rival (Kunis) who might or might not be a figment of her imagination. Kunis appeared at last weekend's Comic-Con in San Diego to promote THE BOOK OF ELI with Denzel Washington, as well as her upcoming turns in comedy EXTRACT with Ben Affleck and her voice role on FOX's FAMILY GUY.

BLACK SWAN is set to begin filming in the fall in New York. Aronofksy's Protozoa Pictures is producing with Mike Medavoy's Phoenix Pictures. The film has independent financing, including Michael London's Groundswell Productions as a rumored lead financier.

Fox Searchlight is a likely distributor, but no deal has been made yet.