What makes an R-rated movie? Is it crass and foul language? What about sex? Violence, too? Or it could be a combination of these different elements, which is often the case for some of the best comedies of all time. 

Here is a list of 25 R-rated comedies that really earned their R-ratings, either because of language, sex, violence, or simply because the subject matter was too harsh for audiences under a certain age. With classics like Blazing Saddles and modern gems like The Hangover, and just about everything in between, here are some of the raunchiest comedies and why the MPA felt they should be “restricted” at the box office, but not enough to earn the dreaded NC-17 rating.

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By Philip Sledge