Each film and each character is a completely new set of challenges. It doesn't feel like you can rest on something you may have done well in the past.

That's something that Francis [Ford Coppola] would always say. I remember when I was doing Tetro, he said, "Stay innocent. I'm 69 years old, and I'm still innocent."

What's exciting to me now is the idea in participating in a landscape of moviemaking that's completely different - the way you can make a movie with a 5D or something and what's going to come out of that. Especially the generation under us who grew up with the internet. When they are making films in the next ten years, they're gonna be so different from what we've seen before because their whole worldview is so different.

The biggest challenge to being an actor is when you're not working, just being unemployed, the downtime and not having anything to do.

For me, it was watching 'Reds' and 'Splendor in the Grass.' To me, 'Splendor' is like the companion piece to 'Rules Don't Apply.' It's set in the time when Warren [Beatty] came to Hollywood, and when he did that first film.

[ Woody Allen] persona in the films are so iconic; it's like on par with Groucho Marx or something like that.

[Warren Beatty] will sometimes spend hours on a very small detail to make sure he gets it right. After the kind of work that he's made, he certainly doesn't have to be doing that.