I could be absolutely wrong, but I gather the John Book character is a book character and/or intended film franchise character that never got past one movie.
Sequel! Sequel! Sequel!
By the way, the soundtrack is very unique and transcendental for a film of this kind, elevating it to such an ethereal otherworldly effect that an otherwise pedestrian police thriller score wouldn't have.
It's one of my must-gets, must-haves, must-listens now.
Terrifically great movie. Gets watched and re-enjoyed periodically. All 'round excellentness.
"Smiles and Snarls are Equally Contagious!" "The trick is to not do what you're used to doing." "Are you suggesting that people who hold different views can communicate with respect and both gain things out of the conversation?"