postal is an awful, awful movie. but it was hilarious. i hate uwe boll for what he's doing to video game movies, but if i want a guaranteed laugh-at-how-awful-this-is, he's an obvious choice.
The best things I heard and saw about it were the German themed amusement park, and I saw a trailer a long time ago, where an excited terrorist was screaming and firing his gun upwards while in a van, and it showed a bullets popping through the top of the van.
except that wesley willis was schizophrenic so he had an exuse.