I think you've really got to cling to what makes sense to you. Obviously, I'm not a serial murderer in my real life, so that's where you have to delve into and do all the research. But, you have to find something likable in the character.

You want roles that challenge you and that scare you a little and where you can really discover something, even about yourself, that maybe you didn't understand.

Most of the crew were staying in Monaco. But my family and I were actually staying in Nice because I had my whole family there and we wanted a little more space and to stay in a hotel. The truth is we were asleep [when the attack Bastille Day terror happened] and woke up the next morning to it and it was obviously horrific. And then the idea of going out and filming, it just felt so stupid to be working the next day and pretending that everything's cool when you're making some frivolous thing.

I dont like myself without a beard.

I'd known plenty of people who'd worked with Cillian [Murphy], and he was one of those people I'd only heard good things about. It's pleasing when it works like this. As Cillian said, it's not always like that.

I’d been auditioning for parts for years, I never got any better at it. I’m crap at auditions.

I don't like my physique. Who does? I was a skinny guy growing up, and I still feel like that same skinny kid.