Salo, or the 120 Days of Sodom (1975)

With the word ‘sodom’ right in the title, I can’t imagine why it’d be banned. This Italian-French horror art film is based on a book by the Marquis of Sade. It’s a sadistic look at group of wealthy libertines that kidnap 18 teens and subject them to sexual violence and torture. The film was banned in numerous countries for decades and finally was released in its original form in the UK in 2000.