1. Cannibal Holocaust (1980)
A group of Mondo style journalists venture deep into the Amazonian jungles to film a documentary about the natives. They are never heard from again and it is up to a Professor of Anthropology to go and find out what happened to them. He makes friends with the natives and manages to retrieve the documentary makers' film reels. Going back to New York, he views the film footage with increasing horror. Cannibal Holocaust possesses a litany of repellant acts that have catapulted it to film infamy and many, many censorship problems. There is a lot of animal snuff in the movie - the most disgusting scene of which features a turtle being dismembered and eaten. There is a forced abortion sequence, rape by stone dildo, a woman impaled through the vagina and out of the mouth. And this is before we get to the crew's repellant acts of raping a native girl, torching the natives' huts for the purpose of getting exciting footage and generally being royal jerks to the natives. The natives get their own back in equally repulsive sequences. Banned in lots and lots of countries due to its high impact violence, animal snuff and generally nasty tone, Cannibal Holocaust has been reappraised from being a shoddy Video Nasty to becoming a cult horror favourite in part due to its many repellant set pieces. It is shocking and horrific and not a viewing experience you will forget in a hurry.