I've always enjoyed non-linear storytelling. A number of people seem to have picked up on this aspect of the movie and thus dubbed it similar to Pulp Fiction (though no one mentions Reservoir Dogs) when this movie takes non-linear storytelling to a level beyond where Quentin Tarrantino was ever able to go.
Now, certainly Memento came along afterwards and transformed the entire art of non-linear storytelling. However, Memento uses it to keep the movie watcher guessing until the very end, whereas Boondock Saints puts the pieces on the table, letting you try to put them together, but then will continue handing you pieces until the picture becomes clearer.
Clearly the movie is designed to be over-the-top, both from Williem Dafoe's character to the action sequences themselves. Williem Dafoe makes this movie for me. The plot, which centers on religiously-inspired vigilante justice, has an air of being somewhat cliched, although I would be hard pressed to name another movie which handles it in this matter.
I still fail to see how others consider this movie vacuous and without meaning, when its message about the pitfalls of our current legal system and the need for something that transcends it is quite clear. I thought the ending, in which various people are interviewed about their opinion of the "Saints" and how for some vigilante justice was an incredibly sensitive issue, made this point very clear.
