Last Night's Look: Hit or Miss?

Vote on this week's styles, including Rihanna, Anne Hathaway and more stars! You decide – are they fashionistas or flops?

ELIZABETH BANKS

Also at the Our Idiot Brother premiere, the new mom dazzles in a jeweled-collar pink-and-black Prada cocktail dress, accessorized with a perfectly matching clutch and pumps (also by the brand) and Irene Neuwirth jewelry.