Even the harshest critic has to recognize the sheer unbridled joy of their ignorance.

Their monumentally stupid and childish observations burst like water balloons over the heads of everyone they encounter; the movie plays like a dumbed-down "Animal House," and its idiocy is irresistible.

A wellspring of lowbrow comedy that leaves you giggling in spite of yourself. Truly, it does not suck.

Those who deplore Beavis and Butt-Head are confusing the messengers with the message.

Nastily amusing

Has some genuinely amusing moments of dumb and dumber silliness.

Successfully brings to the big screen those no-brainer nerds who have brought laughter to living rooms around the world for nearly four years.

Takes the spirit of their late night TV show and flies with it.

A hallucination sequence and a scene set in a Vegas nightclub are so engrossing you forget they're animated; even the showiest techniques don't detract from the story.

Scene for scene, the duo are in good form. Yet this is one case where more turns out to be less.

Those who have learned to enjoy the duo on MTV (for whatever reason) will welcome this as a holiday treat. Everyone else will have a better time if they stay away.

It's just as juvenile as you'd expect, and even funnier.

Admirers of their MTV series will find a few laughs in this animated odyssey. Others will find it as repetitious as it is vulgar.

There are some yucks in this ludicrous movie, but what was amusingly imbecilic at 20 inches becomes simply simian at 20 feet. To paraphrase SCTV's fishing louts, some things just don't blow up real good.