Back to the Future Part III (1990)

Directed by Robert Zemeckis and starring Michael J. Fox, Christopher Lloyd, Mary Steenburgen and Thomas F. Wilson, Back to the Future Part III sends Marty McFly back to 1885 to rescue Doc Brown from the Old West. With the DeLorean damaged and Doc increasingly attached to schoolteacher Clara Clayton, Marty must find a way to return to 1985 before history catches up with them. Universal classifies the film as Comedy, Family, Sci-Fi and Teen.

Från IMDB:
After visiting 2015, Marty McFly must repeat his visit to 1955 to prevent disastrous changes to 1985...without interfering with his first trip.