"Well, it was interesting because when I was going to do it the first time in my head was Leonardo DiCaprio [for Chris] and Marlon Brando was going to play the character that Hal Holbrook eventually played. But then when it wasn't to be and there was no promise that it ever would be I think some part of me didn't want to attach specifics to it anymore - actors or anything else - because I wanted to see it made that much more badly."