Although a number of the gags fall flatter than a crepe, the accent is on the charmingly juvenile as opposed to the purely puerile, with a fresh-faced cast of amiable young performers on hand to make the trek relatively painless.

In the world according to Eurotrip, the Europeans may be a twisted, outdated, ridiculous lot, but what defines them is that unlike the Americans, they've never quite evolved to irony: They treat even the scuzziest habits with dire sincerity.

Scene-stealing cameos by Matt Damon and Lucy Lawless and the very catchy pop song that becomes a leitmotif for Scotty's pain are among its less-raunchy (comparatively speaking) highlights.

The mildly xenophobic humor includes one of the few inventive mime insults seen in a movie; Eurotrip may be stupid, but it's not dumb.

Yet for all the debauchery, there's a juvenile candor in its knowing embrace of teen sex comedy cliches, as if the entire film is just one of Scott's fantasies. You half expect him to jolt awake at the end, and why not? The film fades just like a half-remembered dream.