Marion Cotillard - Met Ball 2012

Marion Cotillard strikes a pose at the 2012 Met Ball held at the Metropolitan Museum of Art on Monday (May 7) in New York City.

The 36-year-old French actress wore a dress, shoes, and bag all by Christian Dior. She accessorized with Chopard jewelry.

PHOTOS: Check out the latest pics of Marion Cotillard

Last week, Marion brought her 11-month-old son, Marcel, to the set of her latest project, Blood Ties.

The movie, written and directed by Marion‘s longtime beau Guillaume Canet, centers around two brothers who face off over organized crime in Brooklyn during the 1970s.