Back to the Future Part III Back to the Future Part III Back to the Future Part III is a 1990 American science fiction Western comedy film and the third and final installment of the "Back to the Future" trilogy. The film was directed by Robert Zemeckis, and stars Michael J. Fox, Christopher Lloyd, Mary Steenburgen, Thomas F. Wilson and Lea Thompson. The film continues immediately following "Back to the Future Part II" (1989); while stranded in 1955 during his time travel adventures, Marty McFly (Fox) discovers that his friend Dr. Emmett "Doc" Brown, trapped in 1885, was killed by Biff Tannen's great-grandfather Buford. Marty travels
Back to the Future (TV series) show focused primarily on the Brown family, whereas the movies focused on the McFly family. The film's villain, Biff Tannen, also appeared frequently. In addition, relatives of McFly, Brown, and Tannen families were plentiful in the past or future parallel time zones visited. Unlike the films, which took place entirely in Hill Valley and the surrounding area, the series frequently took the characters to exotic locations. At the end of every episode, Doc Brown would appear to do an experiment, often related to the episode's plot. The first season also included post-credits segments with Biff Tannen telling a joke related