^ Really? When was that? (Not doubting you, just hadn't heard it)
A while ago. I'll try to dig up the interview. It was back when the speculation was rampant for The Dark Knight
and who would represent the mob element of the film, and Nolan denounced The Penguin because he thought he would be a difficult character to fit within his realistic setting, which I thought was interesting considering he is probably one of Batman's more easier characters to do in a naturalistic interpretation.