Most of the kill scenes in the film were shot and added into the film by the producer, Jim L. Ball, unbeknownst to director James C. Wasson at the time, whose original version contained little to no gore.
One of the horror movies banned in the UK during the "video nasty" craze of the 1980s. It was passed with one minute and 41 seconds of cuts in 1994. It was passed uncut in 2021.
Originally titled "The Revenge of Bigfoot" in the script, the movie's name was later changed when the interest in Bigfoot movies that started in the 70's waned.
Almost all of the scenes for this film were done in a single take.
The Bigfoot mask cost six hundred dollars to make.