Back to the Future him to 2015 to resolve a problem with their future children. The trio board the DeLorean, which has been upgraded with hover technology, and warp to the future. Writer and producer Bob Gale conceived "Back to the Future" after he visited his parents in St. Louis, Missouri after the release of "Used Cars". Searching their basement, Gale found his father's high school yearbook and discovered he was president of his graduating class. Gale had not known the president of his own graduating class, and wondered whether he would have been friends with his father if they went to high school
Back to the Future together. Film studios rejected it until the financial success of Zemeckis' "Romancing the Stone". Zemeckis approached Steven Spielberg, who agreed to produce the project at Amblin Entertainment, with Universal Pictures as distributor. Fox was the first choice to play Marty, but he was busy filming his television series "Family Ties", and Eric Stoltz was cast; after the filmmakers decided he was wrong for the role, a deal was struck to allow Fox to film "Back to the Future" without interrupting his television schedule. "Back to the Future" was released on July 3, 1985 and it grossed over $381 million worldwide,