Dare I say it...

Rating: 8/10 (2 April 2007)

...not quite as good as Shaun of the Dead? But still excellent.
As some others have said, perhaps this is because I am more familiar with zombie movies than the cop movies they are lovingly sending up here. Despite this, the movie is stuffed with great gags, fantastic details and marvellous performances, so I'm sure will repay re-viewing.
I think there were possibly too many characters in this, so the middle third gets a little bogged down, and a lot of the editing and sound effects which worked wonderfully in the 'Z' movie didn't translate to this genre quite so well.
Nonetheless, highly recommended.