Before they were even talking about the anorexia glam, the couture costumes, and the juicy backstory, (and The Winona!) Black Swan was pretty much knows as "that movie where Natalie Portman and Mila Kunis have hawt lesbian secks".
[UPDATE UPDATE]: Less than 1 hour after we posted, the clip has been yanked. You snooze, you lose!
Now you can see what it was all about...
(I hope OC doesn't have to warn you that a very NSFW link is under the cut)