PetSmart 'The Avantguardians' by GSD&M

Director Christophe Guest continues mockumentary style in new ad

Austin, Texas, agency GSD&M has unleashed a fresh ad for PetSmart by director Christopher Guest.

Guest used his signature humor in a previous spot during the Oscars, which featured stars from his dog-themed comedy "Best in Show." In a similar comedic vein, this commercial fetures two new stars who crank their dog obsession up to 11.

In the ad, a canine-coddling couple arrive at PetSmart after explaining their affinity for all things "fashion forward."

They then praise the dog groomer for their pampered pooch's previous 'do while a voiceover explains appointments can now be booked online.

A companion web film, "Nooks and Crannies," gives further glimpses into Ford the shih tzu's eccentric owners.