Back to the Future (1985)

Marty McFly, a high school student, is accidentally sent back in time to 1955 with the help of the eccentric inventor Dr. Emmett "Doc" Brown's time machine - a DeLorean car. He must make sure his parents fall in love, or risk altering the course of history and jeopardizing his own existence. This classic sci-fi comedy film was directed by Robert Zemeckis and stars Michael J. Fox and Christopher Lloyd.