Studio executives were so sure this film would flop that Robert Zemeckis was pre-emptively fired from directing Cocoon (1985). It turned out to be such a success that Zemeckis was able to go forward on his own project, Back to the Future (1985).
This was the only produced screenplay for writer Diane Thomas. She had been working as a waitress in Malibu when producer Michael Douglas optioned her script for $250,000, allowing her to quit her job. Sadly, Thomas died in a car accident while working on a new movie project with Steven Spielberg the following year, about seven weeks before the opening of this film's sequel, The Jewel of the Nile (1985). She was a passenger while her boyfriend was driving a Porsche that Douglas had bought for her as a thank you gift.
This film marked the beginning of director Robert Zemeckis's partnership with composer Alan Silvestri. Ever since then, Silvestri has composed the music for every Zemeckis-directed film.
Though described by some film critics as a "rip-off" of 1981's Raiders of the Lost Ark (1981), the original screenplay had actually been written five years earlier around 1979.
Michael Douglas and Danny DeVito were roommates during their time in New York City when starting out in show business. Additionally, DeVito notes that Douglas got his break first with the TV series The Streets of San Francisco (1972) but continued to pay his share of the rent even after leaving their apartment in New York for Hollywood. He would later, as producer and reluctant lead character, Jack T. Colton, offer the part of Ralph to DeVito, which DeVito admits was good exposure and helpful to his career.
Robert Zemeckis: [ticking clock] panning across part of a room with a loudly ticking clock to a ringing phone.