With fiction, I've grown to really love the challenge of lying, the challenge of telling a good tale that isn't truthful, and working with performers is endlessly fascinating. You know, learning what a good performance is, how to get a good performance, how much or how little you need to create emotion or to create character.

There's something about the lack of certainty with a documentary, which is exhausting if you do three in a row. It's nerve-wracking.

I started as a documentary maker, and they're my first love.

John Lennon made wonderful music, which people listen to as music. Nobody around the world is living their life according to the precepts of John Lennon.

I think everything that I've done, I've been involved with for longer. Either you develop it from scratch, or you take something, and you develop it, and you work on the script, but I'm not sure how good I'd be at just sort of taking a piece of material and being a director for hire like that.

It's always nice to have the same people that you are familiar with and shorthand with, obviously, to be around you.

The amazing thing about Bob Marley is that there is no moving footage of him at all for the first ten or eleven years of his career. From 1962 to 1973, there's nothing, not a single frame.

I recommend to any of you, that's always a good way to make a film: use the interesting bits.

The things that are hardest to shoot are the things where you want people just to feel very natural, and you want to do love scenes, and you want to do just kids hanging out and trying to get them to relax.

When we made 'Life in a Day,' we asked people around the globe to record their lives on a single ordinary day. When we were cutting that film, we talked about what it might be like if we chose a day that already had significance to people. The result is 'Christmas in a Day.'

I was fascinated by making a submarine movie, inspired by the Kursk disaster. This idea of being trapped down at the bottom of the sea seemed so terrifying. I was very interested in making a sub film which wasn't a military film. You think, Well, why are they there, then, if they're not in the military? Oh, well, they must be looking for treasure.

I think we're all greedy. Who do you know who says, 'I have enough! I don't need any more!'? It's part of human nature.

We should not confuse having a Flip camera with making a documentary.

It's interesting to me that the Arab Spring started in Tunisia, and in the marches, people were singing 'Get up, stand up, stand up for your rights.'

If you go to pretty much everywhere in the developing world, you will find Bob Marley murals, and you'll find people playing his music.

I'm a cynical person who's normally attracted to the dark side of things.

I like to take a little of what I learned in fiction and apply it to documentary and vice versa.

Elvis Presley's estate is making 30 million a year, and they say that Marley shouldn't be, but he is from a much poorer part of the world, and a lot more people need the money.

I think there's always been interest in Bob Marley.

People think that the Italians invented neorealism, but actually, Humphrey Jennings did. He was revolutionary in using non-professional actors in his films, and he got extraordinary performances out of them.

I remember going to the university film club to see 'The Life And Death Of Colonel Blimp' one night and being bowled over. It was one of the most beautiful films I'd ever seen. And it felt so personal.

Every film that is made about the past is always a reflection of the present.

It's so nice to be totally artistically free.

I suppose that the Western has always been a kind of mold to which you could pour the concerns of the day, but have them seen in the simple terms of the Western, of one alley or whatever.