I've looked at FUNNY from both sides now, from up and down, but still somehow it's funny illusions I recall.
Ahem.
Funniest movies: Monty Python & the Holy Grail. Groundhog Day. Peter Sellers/Pink Panther Airplane. WCFields & a few other oldies.
But I feel compelled to comment on some of the others. Mel Brooks was NOT FUNNY. His "humor" was little more than a succession of fart and bathroom "jokes," predictable and un-funny sexual double-entendres, and a few pathetic sight gags. Jerry Lewis was not funny. Silly, that's it. Robin Williams was occasionally funny, but usually only when scripted by someone else. Williams was a poor-cousin copy of Jonathan Winters, who was also just silly - but much better at it than Williams Williams was not a bad actor, though. Three stooges were totally lacking in real humor...brought out the 12-year-old in all of us. Same for Martin-Lewis, Abbott-Costello, Laurel-Hardy. Not the least bit funny. 'Who's on First' was the least funny "bit" in the history of humor.
The problem with transferring real humor to a feature-length film is that most of the audience is comprised of idiots.