4. Texas Chainsaw Massacre (1974)
This movie was instantly banned in UK, Brazil, Australia, West Germany, Chile, Iceland, Ireland, Norway, Singapore, and Sweden, due to its extremely violent content. But this movie is credited for being influential in giving birth to a number of genre tropes.
5. I Spit on Your Grave (1978)
This was not one of those horror movies, with zombies feeding on humans, but a rape and revenge drama, which contained a 30-minute gang rape scene. Considered as one of the worst movies ever made, that got banned in Ireland, 7 years in Australia and was available only in a few Canadian territories.
6. The Exorcist (1973)
A classic among horror movies and the biggest grossing film, which became a worldwide spectacular. This disturbing movie triggered many audiences to vomit, faint, and go berserk. In the UK this film’s video was banned for 20 years. There were rumors that if anyone saw this film alone would be offered a prize.