Chances are you've been urged to check out Disney's animated robot flick “WALL-E," which has received critics' praise this summer. And you should--if only for Pixar's exuberant introductory short, “Presto," which steals the show as a throwback to classic Warner Bros. critter capers.

The minifeature stars Presto DiGiotagione, a stage magician whose headlining gag is pulling a bunny out of his top hat. Problem is, that bunny (named Alec Azam) is in a diva- size snit. Alec is overdue for his carrot, and he won't budge 'til he's had his pay--not even when an indignant Presto insists the show must go on. The ensuing Tom- and-Jerry beatdown is cleverly shielded from the magic-show attendees, who think the high jinks are just part of the act.

Like most Pixar shorts, the Doug Sweetland-directed toon (now online at iTunes) is dialogue-free, focusing instead on superb art and sound direction. Each frame is a richly toned pastiche of Victoriana, with vibrant circus posters and saffron- fringed curtains. The score's cymbal crashes and plot-building crescendos the retro feel.

In the end, Alec gets his grub, Presto gets his ovation and their relationship is restored. Exeunt all.