Gritty, great crime movie. The writer, Troy Duffy, claims the story was inspired by real life events he saw while living in Los Angeles. I don't know about that, but it does also star William Dafoe, who I am a big fan of. I think I like any actor who is patently incapable of playing a romantic lead in a chick flick. He was great in Mississippi Burning.
This movie has a great cult following. I think the popularity stems from the "everyman" taking out the bad guys. The religious connotations are pretty cool too. I just tried to find some cool site related to vigilante justice, but for the most part none of them really struck me as interesting. Best thing I found was some article about vigilante gangs in Mexico, beating up robbers and kidnappers. No that great, to be honest.
All prices are in USD.