HARO Online - P.S. Your Cat is Dead!: Pseudonymously signed review (predominantly negative), rating.
IMDb - P.S. Your Cat Is Dead (2002): Cast, credits, production information.
Metacritic.com: Links to a variety of film reviews.
TheCelebrityCafe.com: Steve Guttenberg: Interview in which Guttenberg talks about the movie and what he learned from it.