Video: Movie Time Travel Debunked By Scientists

We've seen many different versions of time travel in movies, but how many of those time travel scenarios are actually scientifically feasible? ScreenJunkies have enlisted University of Southern California physicist Dr. Clifford Johnson and NASA scientist Christina Heinlein to talk about films like Groundhog Day, Back to the Future, Bill & Ted's Excellent Adventure, Planet of the Apes, television shows like Quantum Leap, recent movies like X-Men: Days of the Future Past and Edge of Tomorrow. Watch the not-so-serious discussion in the Movie Time Travel Debunked By Scientists video embedded sometime in the past after the jump.