Get used to the bear behind you.

Otherwise you have to repeat a lot when you're filming. And I've seen the film and it's in a border town in Mexico close to the border with the United States, so of course you have a lot of traffic and noise and dogs barking right nearby, and for that you have to repeat a lot and Robert Rodriguez didn't do that. Smart, smart, smart, you better have smarts also.

Spirit of immersion and curiosity and awe and participation is something which Timothy Treadwell and I have in common.

I have a great map of the Tibesti Mountains in the southern Sahara or Northern Chad. It's a dream of mine to go there, but it's such a volatile area, you have to be prudent.

Of course there's a value in a storyboard if you do a big - let's say an action movie and actors have to move and act in front of a green screen because entire backgrounds exploding and cars flying through there have to be created separately, and in this case you better make sure the actors are precisely placed and the background action is moving in a certain moment, for this type of film you would need a storyboard.

There's a completely new culture out there. I'm not a participant of texting and driving - or texting at all - but I see there's something going on in civilization which is coming with great vehemence at us.

Ten years ago in Antarctica shooting "Encounters at the End of the World," I met a very fine volcanologist from Cambridge University [Clive Oppenheimer] and we kept talking about doing a film and all of a sudden it became serious when he hinted at the possibility to film in North Korea.