I didn't understand a lot. Maybe I didn't pay attention or maybe I 'm not so smart. I must see it again to understand it better... or I won't because it was boring. Like Denzel Washington junior boring.
Although it was dark and violent at times, the film had many unnecessary changes in relation to the novel and I don't understand why. I really Don't want to write more for this mediocre pointless movie.... And I really hated the music.