Trivia about The Return of Swamp Thing.
- With this film, Dick Durock became the first actor since Christopher Reeve to reprise the role of a DC Comics protagonist.
- According to the DVD commentary, director Jim Wynorski wanted Louis Jourdan to refer to the character of Miss Poinsettia as "Points". Mr. Jourdan refused because he knew that the character's nickname was a sexual-innuendo referring to her breasts. Wynorski then asked Jourdan, "Weren't you just in a movie called Octopussy?" Jourdan refused to speak to Wynorski for much of the shoot afterward.
- Abby Arcane played by Heather Locklear tells a friend to leave the TV on because "They love that guy on T.J. what's his name". Locklear played Officer Stacy Sheridan on T.J. Hooker.
- Director Jim Wynorski was given 30 days to shoot this movie and managed to film the entire picture in 27 days.