Cannibal Holocaust

In 1979, an American film crew disappears in the Amazon rainforest while filming a documentary about indigenous cannibal tribes. The team consists of Alan Yates, the director; Faye Daniels, his girlfriend and script girl; and two cameramen, Jack Anders and Mark Tomaso. Harold Monroe, an anthropologist at New York University, agrees to lead a rescue team in hopes of finding the missing filmmakers. In anticipation of his arrival, the military conducts a raid on the local Yacumo tribe and takes a young male hostage in order to help negotiate with the natives. Monroe flies in via floatplane and is introduced to his guides, Chaco and his assistant, Miguel. Read more on Wikipedia.