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.

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.

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.

You know, it's not my film [Valerian], it's really their film. It's very strange. And maybe because it's more when you comes to the Marvel films it's way much more organized and plan, you know, they planned. Okay, we have Thor here, we have this and then we do The Avengers, and then we group. You know, it's much more organized. So maybe there is a little less freedom at the end for the creative people. Where I did the entire opposite. I let them help me, you know. So that's also why maybe they were so involved.

I said if I made 10 films in my life, I would be very lucky. That's how I meant it. My fear after my first one was whether they would let me make another one, so I had this goal in my head.

If you're someone from the government and you meet people from other countries, you want to know who you're dealing with. It's the same for them [in Valerian].

That's the storyboard that we have in the beginning [of Valerian]. It's an easy shot. It's just a spaceship coming in. That's the first layout. On the first layout, we see the timing of the shot and the speed. It starts to get some shadows, and we see that everything is moving in the back.