Famous Ladies You Never Knew Were BFFs

Mila Kunis and Natalie Portman

Kunis and Portman were already friends when they were both cast for the 2010 Darren Aronofsky thriller Black Swan (2010). While shooting the film, Aronofsky attempted to pit the two young actresses against each other to make the on-screen tension between the characters seem real.

While a genuinely tense performance was achieved, their friendship was not strained in the process. Kunis has even joked that Portman is the only person that both she and her husband, Ashton Kutcher, has kissed. This is in reference to a scene in Black Swan when Portman and Kunis lock lips as well as the film No Strings Attached (2011) featuring Portman and Kutcher sharing their own romantic entanglements.