Black Swan director, Darren Aronofsky , admitted to trying to stoke a cutthroat rivalry between Mila Kunis and Natalie Portman while filming their psychological thriller.

"My take is that I was trying to be a sneaky director and make them argue," the director told Vogue ahead of the film's 15th anniversary

Mila Kunis recently told Vogue magazine while marking the 15th anniversary of “Black Swan” that her preparation for the ballerina thriller consisted of “a lot of dancing and very little eating.” Kunis starred in the Darren Aronofsky-directed film as Lily,