After giving birth to her first child, Marion Cotillard made a return to the red carpet for the New York premiere of her hit movie, ‘Contagion’.

The face of ‘Lady Dior’ was of course wearing a look from the French brand, donning a black lace dress with a nude underlay from the Fall 2011 collection.

She styled her hair in a braided updo and kept her hair and makeup simple.

Princess Charlene of Monaco attended the Princess Grace Foundation Annual Gala in New York City earlier this month wearing the same dress.

This is the second princess we’ve had on a WWIB? poll in so many weeks. It’s ironic how both were the second person to wear the look after an actress.

Princess Charlene also kept her look simple, styling her hair into a wavy updo.

I love Princess Charlene’s sophisticated style, but this look fell flat on this occasion so Marion wins by default.

If you are still undecided, click on the image above to see more pictures of both women in this Dior gown.

Credit: Style.com & Getty