Scott Howard's (Michael J. Fox's) house was located on the same block as 1955 George McFly's and 1955 Lorraine Baines' houses from Back to the Future (1985).
Lisa "Boof" Marconi was based on one of the writer's high school girlfriends. That was really her name.
The entire production took only twenty-one days.
According to Rod Daniel, "Somewhere in a vault is about an hour of the most embarrassing sports footage ever taken."
Michael J. Fox disliked this film so much that he refused to return for the sequel. In an interview at the time, while Back to the Future (1985) was in production, he lamented, "Steven Spielberg's down the street making great movies and I'm playing a werewolf."