Back to the Future Part II was written by Bob Gale.
Back to the Future Part II is a 1989 American science-fiction adventure comedy film directed by Robert Zemeckis and written by Bob Gale .	Robert Zemeckis	Robert Zemeckis	Bob Gale	Bob Gale	science-fiction	Science fiction film	adventure	Adventure film	comedy film	comedy film	Back to the Future	Back to the Future
