Last Night's Look: Hit or Miss?

Vote on this week's styles including Miley Cyrus, Jessica Simpson and more stars! You decide – are they fashionistas or flops?

MARION COTILLARD

The French actress brings her Parisian chic stateside in a black one-shoulder Elie Saab minidress paired with strappy metallic pumps and a studded Christian Louboutin clutch for the Palm Springs International Film Festival.