Trivia: Director Russell Mulcahy manages to insert his name in this movie: Lamont Cranston's butler is addressed as "Russell" by Margo Lane at Cranston's residence, and there is a delivery truck with the name "Mulcahy" emblazoned on the side of the vehicle.
Trivia: In the scene where the judge is killed by the two sentries, one of the sentries is played by director Sam Raimi (of Spider-man fame).
Trivia: In the hospital Heather is told that she can not be in a certain area without a pass; she replies "Screw your pass." The very same line was spoken, by her character Nancy in Nightmare on Elm Street 1, to a hall monitor in her dream.
Trivia: Kirsten Dunst (Claudia) had her first on screen kiss, with a much older Brad Pitt, in this film.
Trivia: If you want to see Michelle Pfeiffer done up as a Michael Jackson look-alike watch her when she leaves her garden house shortly before her metamorphosis. (01:53:10)
Trivia: Almost the entire score was taken from "Phantasm II," with only a few minor tweaks and additions. As the film was low budget, this was done as a cost-saving measure.
Trivia: Shot back-to-back with "Puppet Master 4."
Trivia: Cherie Lunghi (born 1952) is only eight years older than Kenneth Branagh (born 1960), despite them playing mother and son.
Trivia: This is the second sci-fi/horror movie Donald Sutherland starred in about an alien parasite that takes over people's bodies and turns us into emotionless doppelgangers. The first was the 1978 "Invasion Of The Body Snatchers".