BACK TO THE FUTURE PART II (1989)
Marty McFly has only just gotten back from the past, when he is once again picked up by Dr. Emmett Brown and sent through time to the future. Marty's job in the future is to pose as his own son to prevent him from being thrown in prison. Unfortunately, things get worse when the future changes the present.
From FilmFanUk on IMDb
BTTF2 is just a great movie! It takes what the original movie sets up and runs with it. Since the first movie goes back, this sequel goes forward. And who doesn't want a hoverboard?!