'Dumb & Dumber' trivia and fun facts

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Lloyd's role was rejected by both Steve Martin and Martin Short, with Jim Carrey finally being the actor chosen to play that character in the film.

Jim Carrey improvises

When Harry and Lloyd are in the car, Lloyd asks if he wants to hear the most annoying sound in the world. This was not originally in the script (you can be sure by looking at the look on Jeff Daniels' face).