Dumb and Dumber Movie Sounds: Sound clips from the movie, in .wav and .mp3 format.
Internet Movie Database: Dumb & Dumber: Cast and crew list, synopsis, reviews, viewer comments, quotes, trivia, bloopers, soundtrack details, related films, technical specifications, promotional information, photographs, and links.
Jim Carrey Online: Dumb And Dumber: Review, image gallery, trailers, video clips, and sound bites.
Scripts Galore: Dumb and Dumber: Screenplay for the film.
Traveling on Half a Tank: Critique with MPAA rating advice and a list of the leading cast and crew. Stephen Holden [New York Times].