Two years ago, I shot 'Pillars of the Earth' in Budapest - it was a big part, but I had a lot of time to sit around and visit cafes.

A lot of people think theatre must be much harder work than film, but anything histrionic or superfluous gets seen on camera so you have to work to distil it into a complete sense of what's true.

I'm just one gigantic ball of rancid fear and self-consciousness. I'm entirely fueled by fear, so the fact that I knew it could be a catastrophic disaster made me unable to sleep, and made me work quite hard.

I walk around talking to myself in accents. Usually people look at me like I'm a complete fruit loop.

Learning lines is hard for me because I have the attention span of a six year old. That's why being on planes all the time is so useful - I'm forced to learn out of boredom.

I'm quite ignorant about fashion and I'm colourblind, so it's all a tad tricky. My only knowledge of that world comes through Christopher Bailey, whom I first met in 2008 when I did a campaign for Burberry that featured musicians, artists, actors and sportsmen.

As an actor there's a lot of scrutiny and, even when you've had success, it becomes about sustaining that success. A friend of mine described it as a peakless mountain. Even for Robert De Niro there's Al Pacino and for Pacino there's De Niro.