If you're an English actor and turn up in America, they don't have an opinion about where you sit. They have no idea what auditions to send you to, so they send you to everything.

I'm as voyeuristic and intrigued as the next person as to how celebrities live.

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.

Everything about filmmaking is incredibly weird, and there's nothing natural about watching yourself on the big screen or hearing your voice. It's that same thing that you feel when you watch yourself on a video camera and you hate the sound of your voice - it's that times 800.

I'm trying to buy a house and set some sense of roots because otherwise you're constantly chasing one job after another, and you look back and you've had all these very extraordinary experiences with extraordinary people, but there's not a line of continuity to it.

I'm fully aware that I am a lucky, lucky man. This Oscar belongs to all of those people around the world battling ALS. It belongs to one exceptional family, and I will be it's custodian and I promise you that I will polish him, and wait on him hand and foot.

I love the Potter films. I found them the most wonderful sort of escapism every year or two.