Animal House (sad that I can recite more lines of this from memory than Shakespeare–yes, tis true)
(big, big gap)
Life of Brian/Holy Grail (tie)
Kentucky Fried Movie (the game show during "A Fistful of Yen and the obvious mouthing [in slow motion of “what the fuck?” are hilarious)
Amazon Women on The Moon
Ferris Bueller (My favorite scene is when they show that stretch of road, then you hear the Star Wars music and they have this big assed shadow of the car going over the hill. Makes me laugh inappropriately when I hear the Star Wars theme)
For out-and-out gut-wrenching laughs, Airplane!. I literally couldn’t breathe at times the first time I saw it, and it remains funny after multiple viewings.
For humor within the framework of a clever plot, Ruthless People.
If we’re keeping this strictly American…(that knocks out all the Monty Python)
The Producers (if it’s Mel Brooks, it’s almost always gold)
Ghostbusters ("The next time someone asks you if you’re a god, you say “YES!”)
Some Like it Hot
Army of Darkness (“Gimme some sugar, baby.”)
Princess Bride
and just about anything with Laurel and Hardy, silent or talkies.
For movies that haven’t been mentioned yet (I think)
*Police Squad: The Naked Gun - the baseball scenes are a hoot and a half.
*A Fish Called Wanda - “every man for himself” is not one of the tenets of Confucianism
*Young Frankenstein - “Put the candle back”, “Boy what knockers”, " “Igor, get the bags’ ‘OK, you take the blonde and I’ll take the one in the turban!’”
Any movie by Zucker, Abraham and Zucker, which includes the Naked Gun movies, both Airplanes, Top Secret, and God alone knows what else. The sight gags alone are worth the price of admission.
Most Mel Brooks movies. (Blazing Saddles, the Producers, Silent Movie, and, I hate to say it, parts of History of the World, Part I. Yes, I know parts of it were in very bad taste, but lighten up!)
South Park: Bigger, Longer and Uncut. I know, it’s gross potty humor, but it’s also brilliant social commentary if you can handle the gross potty humor.
Austin Powers: The Spy Who Shagged Me. I saw it twice last summer, liked it more the second time, and I bought the movie when it came out. And the first one’s good, too.
and finally,
5) Any porno movie. Accidental humor is far and away better than anything intentional.
I thought that Princess Bride should have made the top 100.
It was a pretty good list overall though if a little heavy on the last couple of decades. It was nice to see the Marx Bros. and the Thin Man on the list.
Arsenic & Old Lace (all of it)
Murder By Death
Clue
Rush Hour (Chris Tucker and martial arts - yum)
My Man Godfrey
Moonstruck
Auntie Mame or Mame (the one that doesn't have Lucille Ball in it)
9 to 5 (when they are stoned & the copy room scene)
Galaxy Quest
Princess Bride (the preacher at their wedding)