"Gorgo vs. Godzilla" has never been shown in theaters or released on video. In 2003, Carpenter stated that he would never show this and his other early films to anyone because they are "devastatingly bad".
In "Gorgo vs. Godzilla", as well as in other films of 1960's, Carpenter experimented a lot with a variety of special effects. He used stop-motion photography inspired by Ray Harryhausen's style, forced perspective and background projection.
After seeing the movie "It Came From Outer Space" as a child, Carpenter became interested in the horror genre. At the age of eight, when he got an 8mm camera, he began making his first films, inspired by science fiction and horrors like "King Kong" and "Forbidden Planet ". After 1961, Carpenter made several 40-minute films, including "Gorgo vs. Godzilla". The exact date of filming is unknown. The literature indicates that Carpenter made "Gorgo vs. Godzilla" while studying at the University of Southern California.