Trivia: When James Brolin was offered the role of George Lutz, he was informed that they didn't have a script to give him. James bought a copy of the novel and began to read it. At two o'clock in the morning, while reading a very intense part of the book, a pair of pants that he had hung up earlier fell to the ground causing him to jump in fright. After that, James agreed to do the film.
Trivia: In the scene were Mercy claims to have stolen the coat because the cops are looking for somebody in a pink top, she actually had to wear the coat to cover a cast on her wrist which she broke while being pulled by Fox in the 96th street station chase just before Fox's sad departure.
Trivia: The man shooting the movie during the attack on the beach who says "Don't look at the camera" is actually director Francis Ford Coppola. (00:25:38)
Trivia: Halloran's plane, George-Ann, is named after the director's wife.
Trivia: Owing to the film's success, many jurisdictions abolished the "tender years" doctrine in divorce law, which gave custodial preference to the mother.
Trivia: It seems like a mistake, but it really isn't: Director Nicholas Meyer, in his DVD audio commentary, points out that the time machine should not have stayed in London and rightfully did belong where it ended up - in a museum in San Francisco. This is plausible not because of alternate dimensions or time zones, he explains, but because the machine was crated up and shipped there by museum curators after H.G. Wells' death/disappearance.
Trivia: A lot of the cast of Quadrophenia also appeared in the film Scum which was made the same year.
Trivia: All rats used in this movie where imported from Hungary and were originally white. Only black rats can pass the plague, so all rats where painted black or grey right before the film shots. (01:33:35)
Trivia: Director Don Siegel has a cameo as the prison doctor.
Trivia: The scenes where the child vampires float around outside or float into the bedrooms of their victims were partly filmed in reverse to make them seem more "unnatural."
Trivia: When Lance is thrown on the bar during the bar brawl, he yells the Wilhelm scream.
Trivia: The Concorde leased to Universal for the making of this movie was the same plane that crashed in France on July 25, 2000.
Trivia: Although Blythe Danner plays Michael O'Keefe and Lisa Jane Persky's mother in the film, she is only 12 years older than them.
