Eye-Popping Videos From Doctor Who, Daybreakers, Caprica, Chuck And Avatar!Charlie Jane Anders12/17/09 9:00am49EditPromoteDismissUndismissHideGo to permalinkDo new Iron Man images have a secret message? What superpower will John Carter of Mars' villain have? How crazy Daybreakers' vampire-overrun future get? Which much-loved Supernatural character is back? Discover the answers! Plus Doctor Who/Chuck/Caprica videos, and Lost spoilers.