Trivia: During the second to the last scene of the movie, Barbara Carrera is trying to help Michael York push a rowboat into the ocean from the shore. As one of the manbeasts runs into the surf towards them, Barbara Carrera screams "Michael, look out"! Michael York's name in the movie is Andre Braddock!
Trivia: This was one of three horror anthologies that Donald Pleasence (who plays Valentine De'ath in the final segment) appeared in. The others were "From Beyond The Grave" in 1974 and "The Monster Club" in 1981.
Trivia: When Hal Holbrook talks to the press after the heat shield separation we see a model Saturn V in the background. An extra stage has been inserted above the S-II second stage and the mission payload appears to have been augmented too.
Trivia: Director John Boorman initially didn't want to make the movie as he found the first film distasteful. However, when he saw the story treatment, his perspective changed and he viewed "Exorcist II" as a rebuttal to his perception of the original film's darkness and a tale about "goodness" winning. Boorman subsequently admitted that his views were wrong and that the movie didn't work, and that he shouldn't have made it since he "denied what the audience wanted."