The Most Glam Night at CannesJessica Chastain, Marion Cotillard, Heidi Klum and more decked-out stars step out for the annual amfAR gala in the South of France
Credit: Dave M. Benett/amfAR14/WireImage
Updated: Thursday May 22, 2014 | 06:00 PM EDT
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in Givenchy Couture and Tesiro necklace
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