I'm not really very ambitious.

I respect journalism. I was always very aware of journalism from a very broad point of view, but I'd say my baptism by fire was doing the Donald Margulies play Time Stands Still. That for me was a real education because I spent a lot of time with some incredible journalists, war reporters particularly - Bob Woodruff, Dexter Filkins - people who were very helpful in painting the picture for me and reading the accounts of people and what they experienced, a lot of PTSD.

I know that Madonna is not a first-time filmmaker, but I have worked with a lot of first time filmmakers and I have worked with a lot of inexperienced film directors so that never has particularly worried me - I find it quite exciting - but I have never worked with a director who has had so little experience of directing who was so prepared.

I've never done anything comedic. In all the years I've been an actor, I've never delivered one comedic line.

All directors on all sets behave slightly differently depending on what the scene is. For example, if you are doing a love scene, which is intimate then the director is likely to be intimate. If you are doing a scene where everyone is mucking around and laughing then the director is likely to start with that. If you are playing a scene which us incredibly heavy and everyone getting killed then there are probably not many laughs on the set.

The reason I wanted to be an actor is that I don't want to play me for the rest of my life and make money out of that.

I'm more interested in enjoying my life and looking after my family than being hugely successful.