When Back to the Future premiered in 1985, audiences embraced it, and it became the highest-grossing film of the year. Back to the Future stars Michael J. Fox as Marty McFly, a teenager who befriends a quirky scientist named Emmett "Doc" Brown, who builds a time machine out of a DeLorean. As Marty travels back in time, his existence is threatened. The film catapulted Fox into stardom, and he went on to appear in other popular films of the decade, including Teen Wolf, Secret of My Success, and Casualties of War. He also returned to the Back to the Future franchise to reprise the role of beloved Marty McFly for 1989's Back to the Future II and 1990's Back to the Future III.

Source: Movie Web