Sebastian Stan joined Natalie Portman and Mila Kunis yesterday on the NYC set of Black Swan. Natalie has been hard at work on the film all week, having filmed with costar Vincent Cassel on Monday. The trio managed to stay warm despite the freezing Big Apple temperature, all bundled up in their long coats. It will be interesting to see Sebastian on the big screen following his work on TV with Gossip Girl and Kings, as both he and girlfriend Leighton Meester, who's starring in the upcoming Date Night, make the transition to movies. Natalie's also expanding her range of duties, as she just signed on to produce the film version of Pride and Prejudice and Zombies.
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