It exists only to crack you up.

Rating: Null/10 (12 September 2000)

This movie has one point: To cram as many gags about a couple of hopeless idiots into it's run time as possible. The jokes are low-brow and tasteless (it manages to squeeze in not one, but two urination sight gags) and the story is a bit of flimsy about a kidnaping gone awry.
The only thing that could redeem such an offensive picture is if it was funny. Thankfully, all us low-brow fans can sit back and laugh, because Dumb and Dumber is hysterical. It's not for everyone -- this is no Kind Hearts and Coronets -- but if you like a good laxative joke (and who doesn't?), Dumb and Dumber delivers.
Jim Carrey is Lloyd Christmas, a limo driver who tries to pick up girls by climbing into the backseat at stop signs and pretending to be the passenger. His pal is Harry (Jeff Daniels), a dog groomer who spent his life savings converting his van into a furry pooch. When they both get fired the same day, they decide to drive the pooch west from Rhode Island to Colorado (never mind why).
What comes next are a couple thousand miles of jokes about pee-pee, poo-poo, varieties of phlegm, ulcers, rat poison, vicious assault, hideous fashion and the decimation of 1/7th of an endangered species by champagne cork.
Nonetheless for all their stupid, tasteless crudeness (and the movie never lets up) there is a sweet spirit at the core. Lloyd leaves Providence for love; Harry comes along for friendship and loyalty. A more cynical script would have sunk the story, but the optimism and good vibes that propel these two across the country keep things and a fun level.