Nudity is one of the most sensitive themes that a filmmaker can incorporate into his/ her work, and sex even more so. For one to make a movie with such explicit scenes, he/she must have the courage to defy the norms of filmmaking. There's also the risk of their film being block in certain territories due to its local film censorship laws. And ultimately, not all people and cultures are ready to accept movies featuring the said theme. With those challenges that they can encounter, the team behind it might not be happy with how their film did at the box-office, that's for sure. Who wouldn't be?

However, there were a few brave people in the cinema industry who dared to explore the taboo and dared to test the limits of censorship. And that is what we'll be talking about here. In the list below, you can see some of the best flicks that should be adult movies but are not. Most of what we included in our selection have an NC-17 rating, meaning it isn't suitable for audiences below 17 years of age. Some even have a Not Rated (NR movie) versions. The film leading our list was from the Danish movie director, Lars von Trier. He is a film director that never shied away from any challenges. Proving it is some of his works that have become a magnet of controversy like the 2009 thriller Antichrist. But now, he topped the list with his two-part erotic movie Nymphomaniac. For most critics, it is one intercourse away from becoming one of the movies that are basically porn. If you wanna know why, go ahead and click the links below to watch it, along with other movies on the list! Vote now for what you think is the best and let us know what you think through the comment section.