I think the best movies I've ever watched high are Monty Python movies. They are definately better high. Movies that I have to think too much tend to make me sleepy. I did try to watch the Doors movie, as someone mentioned, but recall that I felt like the movie took forever, and eventually fell asleep.

Overall, I like to pick out something funny, because it is usually funnier. Someone mentioned a philosophical slant on movies, and that' not a bad idea, as long as it is interesting. Try Butterfly Effect for something like that - every time I watch that, I find something new I missed previously.
binger Reviewed by binger on . Good Movies For When Your High SNL Best Of Will Ferrell. Game over best movie for when your high ever, watching the cowbell skit with Christopher Walken made me laugh so hard I almost died from lack of oxygen intake. Rating: 5