Back to the Future II is a sequel.
Back to the Future . The film marked the beginning of a franchise , with two sequels , Back to the Future Part II ( 1989 ) and Back to the Future Part III ( 1990 ) , as well as an animated series , theme park ride , several video games and a forthcoming musical . Back to the Future Part II . It is the sequel to the 1985 film Back to the Future and the second installment in the Back to the Future trilogy .