Cannibal Ferox
Three anthropologists out to disprove cannibalism meet men who tortured and enslaved a cannibal tribe. When the tribe seeks revenge, no one is safe.
Starring Giovanni Lombardo Radice, Lorraine De Selle, Danilo Mattei, Zora Kerova, Walter Lucchini, Fiamma Maglione, Robert Kerman, John Bartha, Venantino Venantini, 'El Indio' Rincon
Watch "Cannibal Ferox" from streaming services Tubi TV, Kanopy released in 1981. It's a action & adventure and horror movie, and has a rating of 5.1 out of 10 from Imdb which is fairly okay for this kind of movie.