Quiz

Scenes originally from the movies Sacrifice! (1972) (crocodile being killed with a small knife, and a woman being killed and eaten by cannibals), Ultimo mondo cannibale (1977) (Me Me Lay's death sequence), and La montagna del dio cannibale (1978) (castration scene, footage of a snake eating a monkey, and a man being pulled into the water by a crocodile), were edited into this movie.

The antagonist character of Jonas, and his commune and of the climatic mass suicide, was inspired by the Jim Jones People's Temple cult in Guyana who committed mass suicide in November 1978 resulting in the deaths of over 900 people. Given its proximity to the real events, "Eaten Alive!" is one of the earliest fiction films to depict the Jonestown Massacre.

Years after the filming, Umberto Lenzi said that if he had know that Robert Kerman was a porn actor, he wouldn't have hired him (neither in this nor in Cannibal Holocaust (1980))(EDIT: Lenzi did not direct Cannibal Holocaust). Coincidentally, Jake Teague (Logan) was also a porn actor, and as Kerman, also appears in both movies.

With the exception of the snake killed by Ivan Rassimov, all the real animal deaths were archive footage from Sacrifice! (1972), Ultimo mondo cannibale (1977) and La montagna del dio cannibale (1978).

Robert Kerman didn't have to audition for his role.