For science fiction productions, there is an implied bargain between the screenwriter and the audience: suspend your disbelief on one or two fantastic notions, and the rest of the story will be grounded in the believable. So the genre is predicated on the expectation of one or two key inaccuracies per story. In recent years, though, experts and fans have been nitpicking even the main story conceits of films like "Gravity", "Interstellar", and "The Martian". From the "anything goes" storytelling approach of the 1950's and 1960's sci-fi, Dr. Kevin Grazier explores whether or not the science accuracy pendulum of audience expectation has swung too far in the other direction.