A behind-the-scenes look at the making of Back to the Future Part III (3). Back to the Future Part III is a 1990 American science fiction Western film and the final chapter in the Back to the Future trilogy. Directed by Robert Zemeckis, the film stars Michael J. Fox, Christopher Lloyd, Mary Steenburgen, Thomas F. Wilson, and Lea Thompson. Picking up immediately after the events of Back to the Future Part II (1989), the story follows Marty McFly (Fox), who, while stranded in 1955, learns that his friend Dr. Emmett "Doc" Brown (Lloyd) is trapped in 1885 and is destined to be killed by Buford "Mad Dog" Tannen (Wilson), Biff’s ruthless great-grandfather. Determined to save Doc, Marty travels back to 1885, but complications arise when Doc falls in love with Clara Clayton (Steenburgen). The film, which had a budget of $40 million, was shot across locations in California and Arizona. It was produced back-to-back with Part II and released in the United States on May 25, 1990—six months after...