Wormskull, wtf is with you? That's just spam. What's it got to do with what he asked? He didn't ask "Which movies are funny the second time you watch them?", did he? He said "Funniest movies", which would be translated to a question as so, "Which movies are funniest?". And for your "funniest movies are ones you view the first time" comment, you can't see a movie and not watch it at least once, now can you? so that would make every movie you see that you find funny one of the funniest movies. So, stop complaining about others "spamming" when they're not then spamming yourself, you hypocrit.
Also, there's several movies I've watched many times and laughed each time.
To the topic:
Spaceballs was hilarious, yes. One of my favorites. I like Austin Powers 1-3, Spaceballs, Office Space, and most Adam Sandler movies (Big Daddy, 50 First Dates, Anger Management, etc.).