1. Cannibal Holocaust (1980)
A professor leads a group of people into the dark depths of the Amazon to find out what happened to a disappeared documentary film crew who were making a film about cannibalism. He finds the reels of film from the lost crew, brings them back to New York and watches the horror unfold.. Wildly controversially violent film, Cannibal Holocaust was so realistic that back in 1980 that director Ruggero Deodato was forced to parade the actors through an Italian court to prove he hadn't made a snuff movie. There is an incredible litany of violence in the film: real life animal slaughter in several scenes, a man having his leg amputated by a machete, a native woman having a foetus ripped from her stomach and buried in the mud, the camera crew raping a native girl, a native man raping a native woman with a stone dildo... I could go on here for quite a while. Cannibal Holocaust was the most notorious of the 72 banned Video Nasties in Britain. It was released again with extreme cuts around 2000. Lately it has been passed in 2011 with 15 seconds of cuts. The BBFC actually conceded that the film's reputation had led to the severity of the cuts before. Once boasting itself as "Banned in 40 countries!", it is still banned in Malaysia, Singapore, Germany, Iceland, India and New Zealand.