It’s almost D-Day for Black Swan, which finally hits theaters next Friday, Dec. 3 after dominating the film-festival circuit over the past three months. It’s a foregone conclusion that star Natalie Portman will earn a Best Actress nomination for her career-best performance as a mentally-unstable ballerina. What’s less clear are the film’s chances in the Best Supporting Actress category. The film boasts strong secondary turns from Barbara Hershey, as Portman’s overbearing stage mom, and Mila Kunis, as a new arrival to Portman’s ballet company who soon becomes her biggest competition. I suspect both actresses will have signficant fan bases in the critical community and within the Academy; the question is whether one (or both) of them can amass enough support to score a spot over probable nominees like The King’s Speech costar Helena Bonham Carter, Rabbit Hole’s Dianne Wiest, and the impressive duo from The Fighter, Amy Adams and Melissa Leo. Whatever happens, one of the most memorable aspects of the film is the rapport between Portman’s Nina and Kunis’ Lily, two very different women who eventually strike up a combustible friendship. In this exclusive clip (which spotlights Portman’s formidable dancing skills and director Darren Aronofsky’s impressively dizzy camerawork), Portman and Kunis’ characters encounter each other for the first time.