I've always felt that if you back down from a fear, the ghost of that fear never goes away. It diminishes people. So I've always said 'yes' to the thing I'm most scared about. The fear of letting myself down - of saying 'no' to something that I was afraid of and then sitting in my room later going, 'I wish I'd had the guts to say this or that' - that galvanizes me more than anything.

Doing anything worthwhile takes forever.

Becoming a father, I think it inevitably changes your perspective of life. I don't get nearly enough sleep. And the simplest things in life are completely satisfying. I find you don't have to do as much, like you don't go on as many outings.

I'm not a loner at all.

My father is a real idealist, and he's all about learning. If I asked for a pair of Nikes growing up, it was just a resounding 'No.' But if I asked for a saxophone, one would appear and next day and I'd be signed up for lessons. So anything to do with education or learning, my father would spare no expense.

When I made 'Real Steel,' the director actually had the robots in the monitor, so he knew where everything was. So technically, there's been advancements. But at the end of the day, movies are about story and characters, so all the other stuff is great, but unless you have those two elements, then you've got nothing.

I feel so lucky to have both a son and a daughter, because there's a different relationship with each of them.