Umberto Lenzi is perhaps most (in)famous for "Cannibal Ferox", a film that is not good maybe, but is certainly memorably brutal. This movie seems to have a similar plot with two Euro-idiots deciding to tour a Third World jungle where they encounter both a primitive tribe and vicious ruby smugglers. However, they also meet a lone teenage white girl (Sabrina Siani), who is living there for no apparent reason, and the movie becomes instead a throwback to the late 60's "female Tarzan" movies like "Luana", "Samoa", or "Tarzana". Although it was apparently filmed partly in the Dominican Republic (rather than a European zoo), this movie resembles the contemporary cheap-jack Eurocine/Jess Franco productions ("Cannibals", "Diamonds of Kilimanjaro") much more than it does the Italian cannibal epics. The "locals" seem to be a strange mixture of African and Asian, while I strongly suspect many of the "natives" are really white Europeans in grease-paint. To make matters worse, this is actually a comedy. Italian comedies are really an acquired taste (not unlike huffing paint thinner), but even by the standards of that inferior genre, this is pretty inferior.
Lenzi was fairly proficient at gialli and police thrillers (i.e. "So Sweet, So Perverse", "Almost Human"), but he demonstrates no aptitude whatsoever for screwball comedy. The male characters are all incredibly annoying, but it's hard to know whether to blame the Italian actors or the talentless idiots responsible for dubbing them into English. Then there's barely legal Euro-model Sabrina Siani, who had a great body, but absolutely no idea how to use it. It wasn't that she was a bad actress so much as that she was simply NOT an actress. She never really made any attempt to act, just letting her pert young breasts and her post-adolescent derrière do it all for her. Unlike someone like Edwige Fenech, who was a genuinely talented actress, or Gloria Guida, who was definitely serviceable, Siani doesn't manage to pull off either funny OR sexy here. Her body is the only thing she (or this entire movie) has going for it.
If you're tempted to see this, I would recommend instead Franco's "Cannibals" (also with Siani) or "Diamonds of Kilimanjaro" (with Katja Bienert). Both movies are much more unintentionally funny than this movie is intentionally, and most of the annoying cast in those gets devoured by bloodthirsty cannibals.
