Peter Jackson's (director of LOTR if someone didn't already know) horror comedy from 1996: The Frighteners.
http://images.amazon.com/images/P/07...1.LZZZZZZZ.jpg
"You are SUCH an asshole."
"I'm an asshole... with an Uzi!"
And now that you are all reading this, it's a good time for me to suggest that you'd take a time to watch the earlier works of mr. Jackson, if you haven't already.
Bad Taste http://images.amazon.com/images/P/B0...1.LZZZZZZZ.jpg
"New Zealand maverick Peter Jackson made a splash (well, more of a splatter) with this film debut, a slapstick gross-out comedy about an alien fast-food franchise that turns a small town into a cheap source of meat. All that stands in the extraterrestrials' way is the Alien Investigation Defense Service (yes, it's a tasteless gag), a bunch of would-be Rambos who take on the aliens with axes, rocket launchers, and chainsaws. Jackson mines vomit jokes, dismembered corpses, and brain-spattering gore for over-the-top laughs and succeeds with inventive low-budget effects, crack timing, and sheer exuberance"
and
Dead Alive aka Brain Dead
http://images.amazon.com/images/P/15...1.LZZZZZZZ.jpg
"Peter Jackson proves that if gory is funny, then excessive gory is downright hysterical. As our hapless hero wades through an ankle-deep puddle of blood and entrails, brandishing a lawnmower like a portable Cuisinart at the climax of this zombie-fest, you'll either be screaming with laughter or fleeing in disgust.
Too bad the version of Dead Alive that I have seen was cut approx. 10 minutes.

I think the R-rated version in america is cut too.