If you behave like a celebrity, then people will treat you like a celebrity, and if you don't, they won't. There's not much to write about me in the tabloids.

I feel very lucky to be making good work still. The confidence of youth, or that sort of competitiveness you get when you're 22 or 23, the impatience - that's probably been tempered. Hopefully I'm slightly better company.

Sociopath is a word that has sort of become shorthand for psychopath and there's a distinct difference, it's interesting if you look it up. Sociopath if you look at the medical definition, the profile of a sociopath is that they are supremely intelligent people that are also pathological liars, they have no moral structure and there is one more, they have no compassion or empathy for other people.

There's this thing that's come about that wasn't there when I started acting which is they do this thing called a chemistry test. They put a camera in front of two people, it's usually a boy and a girl, and they go, [whispering]. It's impossible. You can't manufacture it or film it, it just has to happen.

We were able to shoot in a lot of the locations where the mission actually happened and these guys existed, so that was kind of very affecting. We had a Czech crew and a lot of Czech actors. There's a great deal of authenticity to the project [Anthropoid], and Sean [Ellis] was very anxious that that was the case from the beginning.

There's always a level where you think you can improve and do better. Certainly at the beginning... I did four years of straight theater without ever having a part in a movie, and I remember being far more nervous on a film set than I was on the stage. It took a while for that to become less so.

It's obvious that if you're going to play a character you need to amass information about that person and about their environment or their era that they're in and use as little or as much as necessary