You consciously look after yourself, whatever that may be to you, whether it's going out for a few drinks and a bit of dinner, or just hitting the couch and watching TV, or going to the gym or yoga class. Just being aware that there's a potential for you to be in it and respecting wherever you find yourself is good enough.

I know what the important things are in life. I know that just because I pretend to be someone else for two hours on the silver screen doesn't make me a better person than the next man. So, I mind all those things. Simple things.

Yorgos Lanthimos said, "What about if he's a bit soft?" And I said, "Yeah, I think you're right." He just comfort-eats a little bit too much. He's just asleep in his own life and has let himself go. And the mustache, I don't know if it was him or I suggested it. But I remember my sister was watching me eat and she was like, "God, does he have to be fat?" And in retrospect I couldn't think of David being any other way because it affected the way I moved. It really did. It slowed me down in a way that I felt was conducive to kind of tapping into the spirit of the character.

It's so technical. It's nothing personal. You're not fighting really, you're missing each other by a half of foot at least, ideally more and you get a few knocks and bruises. But with the kissing, you do kiss someone. Its lips on lips.

Vampires have always held a very seductive kind of lore and have always been some variety of attractive, whether it's attractiveness that's born of just the physical attributes that they have - this kind of ethereal beauty or translucent pallor - or whether it is more to do with the way they carry themselves.

You dream to eat whatever you can and get away with it and then when you're told you have to eat, it loses its fun straight away.

Making a film, you're in a really dark tunnel and the only kind of illumination is the shared experience you're having with your fellow cast and director.