Sneak Peek: Stars' Stylish New Costumes

See the outrageous and amazing looks that Salma Hayek, George Clooney and more are wearing for their roles. By Melissa Liebling-Goldberg

ROBERT DOWNEY, JR.

A far cry from his Iron Man suit, the actor gets into character in period clothing on the London set of the Guy Ritchie-directed Sherlock Holmes.