Have you ever fallen asleep while watching a movie at the theater?

[The Great Owl]

I have fallen asleep twice while at a movie theater.

Pirates of the Caribbean: The Curse of the Black Pearl
I went to see this after work when I was more tired than I realized. I dozed off, but did not even realize that I had dozed off. The storyline proceeds in such a way that I did not realize that I had missed anything. I raved to my friends about how awesome the movie was, and I went to see it again with them the following week. I realized then that I had slept through the entire scene where Keira Knightley is destroying all of Johnny Depp's rum on the island.

Harry Potter and the Chamber of Secrets
A friend and I went to the midnight showing, and I fell asleep about a half hour into the movie. My friend even woke me up at one point because I was starting to snore out loud. I eventually woke up just in time to see the giant snake at the end. I never did see the rest of the Harry Potter films.