This is one of the great sleeper films of all time in my book: Christopher Walken in a great comedic role, smart (if sometimes pretty contrived) dialog, one of Alicia Silverstone's two credible performances (the other being Clueless), and Nathan Fillian before he got his spaceship.
But the dance scene, where Brendan Frasier did his own moves, is simply outstanding. It isn't heavy, but it sure is fun.
UPDATE 6 August 2010 20:55: Replaced broken audio Youtube embed with Metacafe. There's an advertisement, but you get audio.