Science of Sci Fi films – fact or fiction?

From Matt Damon's recent hit, The Martian, through to Interstellar, Gravity and long-running favourite, Star Trek, Hollywood is obsessed with science fiction. But how accurate is it, in terms of the science? Dr Graham grabs a bucket of popcorn and sits down with astrophysicist, Dr Katie Mack and physicist, Professor Lawrence Krauss to review Hollywood’s treatment of science. Even the not-so-plausible cartoon series, The Jetsons, gets an affectionate mention.