I've always been quite mature because of the way my parents brought me up. They were very good at talking to me like a person rather than a baby, and I was around so many actors and directors from such a young age because my dad is an actor. I was more comfortable with adults rather than actually being an adult child.

My name means freedom in Irish.

'Romeo And Juliet' is the classic love story. When two lovers are separated and trying to get back to one another, that's fiercely romantic and something you become glued to.

We've done a lot of films now about the IRA, we can move on from all that. I loved '71 because I think it showed a very honest trail and what it was actually like. It wasn't one-sided. I really respect ['71 director] Yann [Demange] for what he did. But we have done a lot of those things.

I've been dealing with so much press for Brooklyn, and now I am rehearsing for a play, and it is hard.

Once you move away from home, it's never quite the same again. You expect everything to be just as you left it, and it never is. It's almost the first step into adulthood, realising you've got to make your own way.

I don't look at rushes, or I don't go to the dailies. I don't even really look at playback unless it's an action scene or a move that I need to do better, something like that.