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 to direct "Romancing the Stone" instead, which was a box office success. Now a high-profile director, Zemeckis reapproached Spielberg with the concept. Agreeing to produce "Back to the Future," Spielberg set the project up at his production company, Amblin Entertainment, with Kathleen Kennedy and Frank Marshall joining Spielberg as executive producers on the film. The script remained with Columbia until legal problems forced them to withdraw. The studio was set to begin shooting a comedic send-up of "Double Indemnity" entitled "Big Trouble". Columbia's legal department determined that the film's plot was too similar to "Double Indemnity" and they needed the