"Fido" with Carrie-Anne Moss and Billy Connolly as the leads along with a child actor, K'Sun Ray. I didn't think a zombie movie could be so funny and at the same time weirdly deep.
Review from IMDB:
It's wickedly funny, incredibly original, unbelievably great looking (they went for this super cool wide-screen Technicolor look that's awesome to behold,) and it actually has depth in character and in what it says about society. It's really smart satire that nails everything from Homeland Security to race issues, while at the same time leaving you laughing and realizing how much are world lives in fear. Carrie Anne Moss turns in a comedic performance I never imagined would come from her! She's sweet, funny and sexy! Billy Connolly is great as Fido who can only grunt and moan! And Dylan Baker as the Dad is priceless. In fact the whole cast is perfect. Henry Czerny as the bad guy, Tim Blake Nelson as the neighbor with the hot sexy zombie girlfriend (getting the idea now?) Funny, though-provoking and just all round amazing! Go and see this movie! It's like nothing you've ever seen before.
http://www.imdb.com/title/tt0457572/It was just on Sundance Movie Channel and there are no other showings for it listed on my program guide, but if you get a chance, it is worth watching.