Back to the Future is a 1985 science fiction/comedy film directed by Robert Zemeckis and written by Bob Gale and Zemeckis. It included Steven Spielberg as executive producer, and starred Michael J. Fox as Marty McFly and Christopher Lloyd as Dr. Emmett "Doc" Brown. The film follows a young man named Marty McFly who accidentally travels into the past and jeopardizes his own future existence. The film was followed by two sequels, Back to the Future Part II (1989), and Back to the Future Part III (1990), forming a trilogy.

The movie opened on July 3, 1985 and grossed US$210 million at the US box office, making it the highest grossing film of 1985. On December 17, 2002, Universal Studios Home Entertainment released Back to the Future: The Complete Trilogy on DVD and VHS.

Following the completion of the film series, three more spin-off projects surfaced. CBS TV aired an animated series, Back to the Future: The Animated Series and Harvey Comics released a handful of similarly styled comic books, although their stories were original and not merely duplicates of the films. In 1991, Universal Studios Theme Parks opened a simulator ride based on the series called Back to the Future: The Ride.

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