When Cara [Delevingne] and Dane [DeHaan] arrived, I told their agent, "They need to know all this." I gave them the 600 pages. I said, "You have to learn everything. You're a cop. You need to know the names." I don't want him, when he meets an alien to go, "Whoa" like this. I want him to know if this guy is peaceful.

If we wanted to make it the way I imagined I knew that we would have to wake up earlier and start very early. So we prep like crazy. And the competition you have is like Avatar, you have Star Wars, you have all the big Marvel stuff. So if you want to come in the race, you know, don't be pretentious.

When I got the camera on the shoulder, they give me a nickname. They call me 'the tripod' because I'm kind of short and kind of strong. So if I take the camera and I lock myself, you think that you're on a crane.

What a director is looking for is someone who will follow you and no matter what. And if you ask for blue, he's gonna try blue. And if you say, give me a piece of red with it, and they try. And you don't mind so much if it's difficult to get the blue and the red together. As long as they try. And as long as they give everything they can to give you what you want. That's what I'm looking for.

I don't want to show kids that I am smoking.

I try to follow my instinct as a moviegoer and I do the thing I would love to see it at a movie. I'm like everyone, almost, I go to a movie once a week. I like every kind of film if it’s well made. I’m fine. I’m not a specialist fighting for a genre of film. You just have to follow your instinct.

I wanted to prove that I could do something, so I made a short film. That was in fact my main concern, to be able to show that I could do one.