Back to the Future is a 1985 American comic science fiction film. It was directed by Robert Zemeckis, written by Zemeckis and Bob Gale, produced by Steven Spielberg, and stars Michael J. Fox, Christopher Lloyd, Lea Thompson, Crispin Glover and Thomas F. Wilson. Fox plays Marty McFly, a teenager who is sent back in time to 1955. He meets his future parents in high school and accidentally becomes his mother's romantic interest. Marty must repair the damage to history by causing his parents-to-be to fall in love, and with the help of scientist Dr. Emmett "Doc" Brown (Christopher Lloyd), he must find a way to return to 1985.