You have to be very prudent with what you are doing and what sort of tools you are utilizing. Drones have become a wonderful new tool in filmmaking.

I couldn't roam wildly and speak secretly with villagers [in North Korea]. No way you could do that. And honestly, I didn't even try. I was realistic of what I could do and yet persuaded them into accepting numerous things that I shouldn't have filmed.

Similar thing until today, with digital cameras you look after something like that as robust as they can be.

When you look at the paintings at Chauvet Cave, they're not primitive or like children's little scribbles, it bursts on the scene fully accomplished and when you look through the faces of cultural history, art history, it has never gotten any better.

By the way, today with digital cameras and editing on your laptop, and things like that, you can make a feature film, a narrative feature film easily for $10,000.

Because you're delegated to a cook book recipe and you slavishly and pedantically rely on it while you're shooting and you're not relying on your creative instincts and you're not relying on something which brings life into movies and excitement into it.

After "Jack Reacher" the parts I didn't like, most of it was silly.