The director [Elfar Adalsteins] came to me through my agent and I had a read of the script [of the "Sailcloth]. I thought immediately this is someone who is writing for the cinema. Not having to go through the tedious business of taking something from literature and making that awful leap that is so difficult to make anyway, from literature to cinema. It's refreshing to be able to deal with a subject like that, to be written where the driving force is the image on screen and you don't need any words. The more that we can do that [in film], the better.

I am not an enormous believer in research being the be-all and end-all. I get suspicious when I read about actors spending six months in a clinic, say, in order to play someone who is sick.

I think an actor is very like a sportsman. You have periods where you're in terrific form. Everything you touch seems to work, and come right. And other times, when you're working really hard, it's okay, but it isn't scintillating.

In the end, the game is the same. Football is still football. Now, they may play with different formations, they may have a different idea of training, but the game doesn't alter. I don't mind how any performer - indeed, why should I? How arrogant of me if I did? - manages to get to what they have to get to. It doesn't matter how you get there, as long as it isn't going to destroy other people on the way.

[Bong Joon-ho'] is quite different but technically, he is as clever as [Alfred] Hitchcock. That's saying something. In humanitarian terms, I think he is much cleverer. He is one of the best directors I've worked with. I absolutely adore working with him.

On the other hand, you get other films that are spread over a much longer period of time and it's entirely exhausting. But there's always light at the end of the tunnel with a film.

From John Huston to Fred Zinnemann and Richard Fleischer and all those great American directors.