He [James Dean] was not really rebel - not in the sense that he was rejecting his parents, or saying, "Leave alone. I don't want to have anything to do with you." He was really saying, "Listen to me. Hear me, love me."
The hardest thing about being famous is that people are always nice to you. You're in a conversation and everybody's agreeing with what you're saying - even if you say something totally crazy. You need people who can tell you what you didn't want to hear.