3. Dumb & Dumber (1994)
Memorable quote: "Hey, I guess they're right. Senior citizens, although slow and dangerous behind the wheel, can still serve a purpose. I'll be right back. Don't you go dying on me!"
Laugh factor: The title alone underscores that this movie is dumb. It is the definition of sophomoric humor. But it also features the funniest performance of Jim Carrey's stellar comedy career. The Farrelly brothers, such devotees of "The Three Stooges" that they recently rebooted the franchise, approach the stupid, physical humor employed by their idols.