Let's see....
1.) A Funny Thing Happened on the Way to the Forum
2.) Silent Movie
3.) History of the World Part 1
4.) Down Periscope (suck it, Knox
)
5.) PCU
6.) Caddy Shack
7.) Love Actually
8.) Mrs. Doubtfire
9.) Trading Places
10.) True Lies
11.) Snatch
Honorable Mentions: Death to Smoochy, M*A*S*H, Galaxy Quest
Rule Breaker: Anything else by Mel Brooks