I personally think if something's not a challenge there's no point doing it because you're not gonna learn much.

I think there's such a thing as a performance gene. If it's in your DNA it needs to come out. For me, it originally came out through music, then segued into acting and came out through there. I always needed to get up and perform.

With some films you can sort of slide in, get a haircut and you're in.

There's a lot of comedy in Intermission but it's got this depth. It's not comedy for comedy's sake - it's informed by something else. I like stuff like that

You need to be as clean of a slate as you can be, as an actor. You have to try to be open to every experience.

Every Irish person of my generation and earlier, we were raised Catholic and we'd have to learn it in school, we'd to learn the catechism by rote.

You do your due diligence, you read as much as you can, and then, ultimately, I find that you discard that and you concentrate on the characters [of 'Antropoid'] and you can draw on [the research] if you wish, but I think ultimately it's about bringing as much truth and honesty to the portrayal as possible.