For context, the 2010 movie stars Natalie Portman as Nina, a top ballerina who is preparing to play both the White Swan, Odette, and the Black Swan, Odile, in Swan Lake. As she struggles to tap into her darker side for Odile, Nina risks losing the part to another top ballet dancer named Lily, who is played by Mila Kunis.

“Black Swan” director Darren Aronofsky confessed that he tried to cause tension between Natalie Portman and Mila Kunis during production of the 2010 twisted ballet thriller. The Oscar-nominated filmmaker, 56, spoke about how he attempted to pit the women against each other in an interview with Vogue while celebrating the flick 15 years later.

Natalie Portman and Mila Kunis reflect on how Darren Aronofsky tried and failed to push a rivalry between the two stars on the set of 'Black Swan'