Exclusive Clip: 'Sunshine'

Hotly anticipated, Danny Boyle's upcoming sci-fi thriller "Sunshine" stars Chris Evans, Cillian Murphy and Rose Byrne as crewmembers on a nuke-carrying spaceship tasked to use its massive payload to restart the dying sun. Things soon go awry, and since it's from the director of "28 Days Later" and "Trainspotting," naturally that's when the story really starts getting interesting. In the exclusive clip below, an alarm sounds while two of the crew are on a spacewalk to repair damaged tiles.