Last Night's Look: Hit or Miss?

Vote on this week's styles including Kim Kardashian, Emily Blunt and more stars! You decide – are they fashionistas or flops?

RACHEL WEISZ

Sticking to the classic little black dress, the actress adds a pop of color to her sheer-topped Jason Wu frock with a satin blue sash and shiny patent heels for The South Bank Show Awards in London.