Party Pics: Cindy Sherman, Brooke Shields, Gia Coppola, and More

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Fashion Week doesn't officially begin until next week — but that doesn't mean the fashion crowd is resting up. This week, Cindy Sherman, Emily Mortimer, and Mark Ruffalo turned up to honor Maria Cornejo's fifteenth anniversary collection at Barneys; Lauren Remington-Platt's company Vensette launched its beauty-on-demand app, and Chanel hosted a winter lunch in honor of Sloan Kettering. Click through our slideshow to see all these parties and more.

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