You may, of course, want to go in fresh and see as little as possible beforehand, which is fair enough. But if you click the above link you'll get a mere fifty seconds of Natalie Portman changing-room mirror action, which is not as pervy as it sounds, but is very spooky indeed.
You almost certainly don't need us to tell you by now, but Black Swan, directed by Wolverine's new best pal Darren Aronofsky, involves Portman's ballet dancer Nina landing a long-coveted prima-ballerina role in her company. But she soon finds herself unravelling under pressure from the company's director (Vincent Cassell); the arrival of a hot new ingenue (Mila Kunis); and a lot of very weird goings-on.
It's finally released on January 21.