El regreso de la cosa del pantano

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.

When Arcane re-captures Abby and returns her to his mansion, it seems like dozens of guards in front of the house are frantically running past them in both directions, presumably to defend the mansion from Swamp Thing. In one long shot, you can see an extra dressed as a guard running right-to-left, then stopping, turning, and running left-to-right. This reveals that the multitude of hustling guards were actually a far smaller number doing circuits in and out of the camera frame.

After the Co-Producer credit, the credits 'rewind' and there is a brief scene of Omar and Darryl at the Fotomat. Then the credits resume starting with the same Co-Producer credit.

The 1989 UK cinema version was cut by 2 minutes 34 secs by the BBFC in order to receive a 12 rating with edits to the fight scenes, a woman being assaulted and some of the opening torture shots in the laboratory. All the cuts were waived for the 15-rated video version and the 2004 12-rated Prism DVD.

Edited from La cosa del pantano (1982)