Eaten Alive!

Mangiati vivi! is a movie starring Robert Kerman, Janet Agren, and Ivan Rassimov. A young woman teams up with a mercenary to find her missing sister in the jungles of New Guinea where they find that a deranged leader of a religious...
A woman's search for her missing sister leads her to the jungles of New Guinea, where she and an expatriate guide encounter a cult leader and flesh-hungry natives.