Back to the Future is an American science fiction comedy franchise created by Robert Zemeckis and Bob Gale. The franchise follows the adventures of a high school student, Marty McFly, and an eccentric scientist, Dr. Emmett "Doc" Brown, as they use a DeLorean time machine to time travel to different periods in the history of the fictional town of Hill Valley, California. The first Back to the Future film was the highest-grossing film of 1985 and became an international phenomenon, leading to the second and third films, which were back-to-back film productions, released in 1989 and 1990, respectively. Though the sequels did not perform quite as well at the box office as the first film, the trilogy remains immensely popular and has yielded such spin-offs as an animated television series and a motion-simulation ride at the Universal Studios Theme Parks in Universal City, California; Orlando, Florida; and Osaka, Japan (all now closed), as well as a video game and a stage musical. The film's visual effects were done by Industrial Light and Magic. The first film won an Academy Award for Sound Editing. Films Back to the Future (1985) Seventeen-year-old Marty McFly is accidentally sent back in time from October 26, 1985, to November 5, 1955, in a time machine built from a DeLorean by eccentric scientist Emmett "Doc" Brown, when they are attacked and Doc is apparently killed by Libyan terrorists from whom he stole the plutonium that gives the flux capacitor the 1.21 gigawatts it needs to time-travel. Soon after his arrival in 1955, Marty's mother, Lorraine, falls in love with him, rather than with his father George McFly, threatening to cause a paradox that would result in Marty ceasing to exist. Without plutonium to power the time machine, Marty must find the 1955 Doc Brown to help him reunite his parents and return to 1985. The efforts of Biff Tannen, George's bully and supervisor, further complicate Marty's situation until Marty successfully causes his parents to fall in love and simultaneously convinces George to finally stand up to Biff. Returning to the future via a lightning strike that powers the machine, Marty discovers a vastly improved situation for the McFly family, as a much more confident George has become an accomplished science fiction author, Marty's two older siblings have better lives, he owns the car of his dreams, and an apparently-softened Biff is now an auto detailer, rather