Posted on Sun Feb 6, 2011 12:57 PM PDT
It's already pretty much a foregone conclusion that Black Swan will be an Oscar-winning film after this year's Academy Awards are over, so why not celebrate a little early? That's what Orlando Bloom and Sean Penn (to name a few) did last night at Sunset Towers in honor of the critically acclaimed ballet thriller. Check out our gallery below to see what other Hollywood stars put in an appearance!
That's right, Heather Graham too!
SEE THE GALLERY Orlando Bloom And Company Party On Sunset
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