I always thought the phrase, "I laughed until I cried," was just an oxymoron. Until it happened to me. I watched Dogma: the funniest movie I have ever seen. The movie seemed designed specifically for my warped sense of humor. It was an incredible mesh of the high-brow and the low-brow.
It had one character who was extremely foul-mouthed, and kept making up hilarious obscene phrases. It also had a lot of perceptive, biting (and very funny) theological and social commentary.
For me, it was sort of like being tickled hard in the ribs for about an hour. When I reached the breath-taking climax of the film, the resolution was such a shock and was so unexpectedly emotional and I was so sore from all the laughing, I actually burst into tears. Now, dammit I am a grown man. I never do that. Not even for anything real, much less a movie. But it happened.