During "Julie", a drive-in theater can be seen showing the film The Night Stalker (1972), the in-joke being that it was directed by Dan Curtis.
The original Zuni fetish doll puppet owned by director Dan Curtis was used for the new sculpts of the Zuni fetish doll for the film's sequel, La Trilogie de la Terreur II (1996).
When the film was first shown on Brazilian television in March 1981, strict censorship regulations in Brazil at the time demanded that the third segment ("Amelia") be completely cut. Because of this, the TV station that released it was forced to change its title in Portuguese to "Duas Histórias de Terror" ("Two Horror Stories").
The film crew, in trying to make the Zuni fetish doll look like it had come to life, kept laughing because sometimes bits of it fell off, like an arm or its head. Richard Matheson insisted that he adapt his own short story "Prey" himself because he knew that this story had to be the most frightening one of all three stories in the trilogy.
During "Julie", Chad Foster goes to get a room at the hotel using the fake name Jonathan Harker, a name taken from the Bram Stoker novel "Dracula."