 When Carl Gabriel Yorke (qv) (Alan Yates) arrived in the Amazon  for shooting, he wasnt given a script or an idea of what the movie  was about. As soon as he arrived, director Ruggero Deodato shouted  "Thats my star! Get him into makeup!" Almost immediately, the first  scene they shot was the amputation of one of the characters leg.  Yorke later in an interview said while staying there in the jungle,  he didnt know whether this film was a Hollywood production or  simply a snuff film.