Is Christopher Nolan's Interstellar really about climate disaster?

Christopher Nolan is filming his hard science-fiction movie Interstellar, and we couldn't be more excited. Originally written by Jonathan Nolan for director Steven Spielberg, Interstellar is based on the theories of CalTech physicist Kip Thorne. But now we may know why humans need to go to another planet. » 8/31/13 11:00am 8/31/13 11:00am