Sometimes the failures can be exciting and fun. It's just a step on the road, it's not the end of something.

The meter is ticking [particularly in the face of climate change], so you've got to get to as much as you can as fast as you can. I grew up with 'This Land Is Our Land,' and public land doesn't belong to that administration or this one. We want our kids to grow up with real natural places, not just photos of them.

It's good to say, 'Look, I can't always be right, but my gut tells me this' - and then you confirm with your gut.

He's meant to be that classic Homer, Ulysses, Hercules - a character who goes out or has some gift of some kind. He goes on a journey of discovery and part of that is falling into darkness - the temptations of life.

The way I deal with arthritis is to keep moving. As long as I can play hard tennis, as long as I can ski or ride a horse - all kinds of things can come your way. As long as you can, do it. People who retire die. My dad retired and died shortly after. Just keep moving.

I think documentary filmmakers need as much protection as possible under journalist's privilege. How else is the public to know what is going on?

We've lost our moral foundation, which allows us to go this far over. So I don't blame Trump. I just think he is what he is. We're the ones who let that happen. We should be looking at ourselves.