Why she wins: No one makes minimalism look as desirable as Marion Cotillard. Her looks are always unfussy and clean and usually don't include very many accessories. Then again, if you're Marion Cotillard, all you need is that gorgeous face. Case in point: at the Cannes Film Festival, the actress donned little else besides her white Dior gown and silver pumps.
Her Summer staples: Christian Dior dresses, classic pumps.