play like a low rent version of an italian cannibal movie and but with little nudity and some gore and bad fright wig this be the story of a group of student who travel deep into the jungle to get material for their thesis . stop first with a tribe that have have contact with the modern world and they then move on to find an undiscovered group . while travel down stream their boast flip in the rapid and they be separate into group . one group be capture by an unknown tribe while the others try to find them and stay alive . this be half a good film . most of the stuff up until they meet the unknown tribe be okay in a low rent sort of way . once they meet the tribe thing get very silly a everyone seem to be wear the same bad wig and carry professionally make by the prop department stone weapon . the tribe often seem to be engage in too much ooga booga behavior . there be flash of good stuff in these scene but mostly it come off a a gory caveman ( the movie with ringo starr ) . the film seem to want to be on par with the italian cannibal film but it do on the cheap and with no conviction like the film they be seek to copy . there be almost zero nudity which be odd for a primitive culture . they strip one guy down to his bvd and then stop a if for modesty reason . the female lead never lose her shirt even though everyone else end up with torn clothes . the violence against animal be quite graphic ( and some of the animal against animal stuff be from another mismatch film ) and but some of the violence against people be show slightly obscured manner . it a great disappointment . this isn not to say the movie be awful . it not . there be some good thing here and basically anything not involve the native ( which i know defeat the purpose since this be film about them ) . this be go to appeal more to people with a love for or high tolerance of bad movie since a good half of this be very silly .