It's a commonplace that pets resemble their owners (or vice versa), but the phenomenon has rarely been explored with such dogged glee. A 'mockumentary' tracking half-a-dozen contestants as they prepare for the annual Mayflower Dog Show in Philadelphia, Christopher Guest's film combines flea-on-the-wall observation with direct-to-camera interviews. The similarities with This Is Spinal Tap are plain, although most of the gags here are more of a smile than laugh-out-loud. Co-written by Guest and Eugene Levy, but apparently largely improvised, this caricatures a broad cross-section of social archetypes, from the gay couple (McKean and Higgins) with their shih-tzu, to the neurotic yuppies (Posey and Hitchcock) with their Weimaraner, and Guest's backwoods cajun, with his bloodhound Hubert. The performances are perfect, and the actors aren't bad either, but while it rightly celebrates the underdogs, the film doesn't humanise its stereotypes the way Spinal Tap did. The dog show itself is enlivened by an outrageous comic turn from Fred Willard as an addled TV commentator suffering from a bad case of foot-in-mouth disease. Levy is fun, too, as a cuckolded salesman with two left feet (literally).