Back to the Future Part II Back to the Future Part II Back to the Future Part II is a 1989 American science fiction film directed by Robert Zemeckis and written by Bob Gale. It is the sequel to the 1985 film "Back to the Future" and the second installment in the "Back to the Future" trilogy. The film stars Michael J. Fox, Christopher Lloyd, Thomas F. Wilson, and Lea Thompson. In the plot, Marty McFly (Fox) and his friend Dr. Emmett "Doc" Brown (Lloyd) travel to 2015, where bully Biff Tannen (Wilson) steals Doc's DeLorean time machine and uses it to alter history for the
Back to the Future (franchise) not doing so will unravel everything they've accomplished. In a female voice, the artificial intelligence of the Quantum Mind Jar tells Doc that they need to go back to the future, which he dismisses as he doesn't want to risk making any more time travel. At that moment, another Emmett Brown, from an unknown time period, arrives, also declaring his experiment a success. Both versions of Emmett, along with the artificial intelligence of the Quantum Mind Jar, are shocked at discovering that there are two Emmett Browns present. "Back to the Future: The Ride" is a simulator ride based on