From left to right, MIT PhD seekers Carl Dietrich, Anna Mracek, and Samuel Schweighart show models they designed for a real-life flying car that could be marketed to consumers. Someday, what was once the realm of sci-fi television shows, movies and cartoons could be real life (what Mass Highway thinks about it, we just don't know). Take a look at some of the gravity-defying vehicles that have appeared in movies and television over the years.