Last Night's Look: Hit or Miss?

Vote on this week's styles including January Jones, Reese Witherspoon and more stars! You decide – are they fashionistas or flops?

KATE WINSLET

Stepping out with her new man Louis Dowler for the opening of photographer Mario Testino's exhibition during the San Sebastian film festival, the Oscar winner dares to bare in a one-shoulder black frock, highlighting her stems with nude peeptoes and Tiffany & Co. jewelry.