Gossip Sienna Miller Burns Breasts In G.I. Joe Role

Sienna Miller certainly risked a lot when she took on a butt-kicking villainous role in "G.I. Joe: Rise of the Cobra" and it turns out that during filming she nearly lost her something very close to her heart. Literally. "I burned my boobs," Miller admitted to Tarts at Thursday's Hollywood premiere. "I slipped on a rubber bullet and I was covered in bruises.