Dimitrios Kambouris/Getty Images for The Weinstein Company
Bronwyn Barnes
Oct 11, 2011 @ 4:00 pm

Jake Gyllenhaal joined Michelle Williams (in Dior) at the Hudson Hotel for a pre-screening celebration for the New York Film Festival premiere of My Week With Marilyn. Why no after-party? Not long after walking the red carpet the busy actress slipped out to catch a flight back to Detroit, where she is currently filming Oz: The Great and Powerful. Click through to see Lauren Conrad, Emma Stone and more stars at last weekend's hottest events!

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