No, improvising is wonderful. But, the thing is that you cannot improvise unless you know exactly what you're doing.
Christopher WalkenOne thing that's happened to me is I've been around a long time and I've played a lot of villains and so forth. I think it had to do with, well one thing is that I looked younger than I was for a long time. Now I think I'm suddenly starting to play people's father.
Christopher WalkenWhen you're onstage and you know you're bombing, that's very, very scary. Because you know you gotta keep going - you're bombing, but you can't stop.
Christopher Walken