I really do try not to emote. I don't like seeing it on documentaries - it seems a bit unprofessional. I also need to be human being and be a kind of sympathetic presence for the contributors I'm with, so there' a line you have to walk.

Although my dad's a writer, we grew up in a telly-watching household. I never found him disparaging about television.

Look after your body, because I'm 44, and things are happening that I never dreamed of - like bad joints and man boobs!

I think Donald Trump's had a pattern of leaping on the bandwagon of anything that he feels will further his candidacy, and if that means sowing more fear and paranoia and playing into a kind of xenophobic populist strain, then that's what he will do.

Empires will come and go. The Soviet Union collapses; China can become a superpower, but 'Blue Peter' stays the same.

I'm not pugnacious or argumentative. I'd probably feel fear going into a pub in the Outback.

In my normal way of doing things, there's a little bit of 'going native' that takes place, where you're in a world long enough, you can't really help but start to see things in a nuanced, more humanistic way. Just because you're with people and you start to, in general, slightly like the people you're with.

True believers of Scientology seem to know with utmost certainty that they have found the answer to the deepest riddles of all time - they may or may not be right, but that kind of self-belief is very appealing.

I've discovered I am quite a puritanical person.

I would love to make a film in the outback or in Papua New Guinea, in Port Moresby. I know that it's not in Australia, but it's not too far.

The thing is, I have never been that confident, and, um, I have a lot of self-doubt, and I had never - I don't think I ever would have consciously chosen to be a television presenter.

It's in the DNA of Scientology that they don't trust journalists.

There have been times when I've felt inappropriately emotional. I remember making 'The Most Hated Family in America' about the Westboro Baptist Church, and being on the way to a funeral of a U.S. soldier with the Phelps family; they were going to picket the funeral.

Not counting the brand of Sunni Islam practised by the so-called Islamic State, there is probably no religion in the world that comes in for more flak than Scientology.

'Cunnamulla' is a beautifully bleak portrait of a lonely town in which people are leading lives of sort of quiet desperation.

I think of myself as being quite affable, approachable, fairly easy to get to know.

Do I care about clothes and stuff? Not much. It's a bit sick, isn't it, people spending all that money on clothes? I'm too stingy. I wouldn't pay £100 for a shirt.

I sometimes get accused of being 'faux-naive,' but for me, it's really just about getting down to the basics of something.

Scientology is not that different from other religions. And yet, at the same time, we don't have Anglicans doing the things that are alleged to be done in Scientology, at least in the Sea Org.

It's wonderful to work with actors we haven't worked with before.

Our civilizations have evolved. The solutions we can find for the things that keep us somewhat primitive and base and ugly in our desires can improve and become more sophisticated. Sometimes there's a disconnect between that. My car can drive, but we can't get rid of violence.

I think that sense of wonderment, where you walk out expecting the ordinary and are confronted by the extraordinary, is something that has always interested me, whether in TV or comic books.

In 'Lost,' they really believed in the mystery box and not looking too much inside the mystery box. It was some kind of idea generator that you didn't need to dissect and open up. And that's absolutely fascinating and an engaging way to tell a story.

At first, 'Westworld' was a project we had declined to do.