Every time I see a good play or watch a good movie, I have the same feeling I had as a child of wanting to be that person on stage or wanting to run through the forest with a big dress on.

I don't really look at the skillset of being an actor as different in each medium. It asks a different thing of you as an actor, but for me, I draw upon the same skillset. It's just a different tuning of your tools as to who you're doing it for, whether you're doing it for an intimate camera or an audience of 2,000 people.

I don't have a story about an epiphany in which I suddenly realised I wanted to be an actor. It was much more a case of the idea dawning on me gradually.

I definitely try my best not to stay in character when I'm not on set, which can be more difficult in some roles than others.

Our industry is so technologically driven that often I Skype with directors or send tapes in to people. It's so common now that sometimes even when I'm here I'll be send tapes for things that are based in the U.K. There's never really a right place, right time anymore. Even something that's L.A. based, the director might be in New York or they might be on location in Budapest. I think everyone's really accepting of the fact that people are all over the world all the time. In a funny way, you can be an actor now and live anywhere, so long as you have internet.

I was very new to working in front of the camera when I started shooting Gatsby, so I set myself the mission of gleaning as much information as possible out of the much more experienced actors. The cast was astoundingly talented.

I guess the bigger you dream, the further you have to fall if you don't get it, so it can be a bit of a scary thing to be that ambitious.