Many suspect that this film was directed by Jess Franco because it's very similar to (and at least as bad as)two Eurocine films he DID direct--"Mondo Cannibale" and "Sexo Cannibale". The movie in fact was made by some of Franco's cronies at the low-rent French production house Eurocine. One of the directors on record was another Spaniard, Julio Tabernero, who directed the superior film "Sexy Cat", but since that film has no cannibals in it, it will probably never get the kind of upscale DVD release this one--and the two Franco cannibal films--have gotten in recent years. There's just no justice in the world.
There's no point in rehashing the idiotic plot again. Everything about this is laughably unconvincing from the horribly dubbed dialogue to obviously European "cannibals" to the "jungle" setting which was obviously a European zoo. The canned sound effects include one bird who seems to be chirping all the time in every single place in the "jungle". The public domain music is imported entirely from Mexico (with horrid variations on such standards as "La Bamba" and "La Cucaracha"), a country not exactly famous for its cannibalistic tribes. (If this had been an actual Franco film, it would have at least had better music).
Franco-regular Anthony Mayans has a small role here. Pamela Stanford has a nice nude scene, which is literally the ONLY worthwhile scene in the entire movie. Sabrina Siani, the heroine of "Mondo Cannibal" has a a don't-blink-or-you'll-miss-it cameo, which (aside from her not being naked) is probably her best role ever since she makes no attempt whatsoever to act (actually she made no attempt whatsoever to act in "Mondo Cannibale" either, but the horny producers still insisted on casting her as the lead). But I'm obviously really grasping at straws to find ANYTHING nice to say about this. This movie has nowhere near the power of an Italian cannibal flick like "Cannibal Holocaust" and frankly it barely rises to the level of a bad Jess Franco imitation. Avoid with extreme prejudice.