In an interview with STYD, Barr said;
Brandon was a friend and I’d never do anything that hinted at betrayal. But what Javier told me was that he wanted to go back to the source material. Be as faithful as possible which would make it something entirely different. Proyas’ film is stunning and stylized. I mean that in a good way. Nothing negative about it. Going back to the original book and keeping it grounded and realistic and dirty and gritty, it really appealed to me. Even so much as to carrying over the visual metaphors like horses and trains – where the street signs always say No Exit or One Way. Exploring it with a different attitude appealed to me.