We have [in Valerian] a bible that's 600 pages. There are five pages on each alien and where they come from. Even the address you can check on the map. On the star map. It's real numbers.

I'm always attracted by people who are lost in their time. I think it helps us.

I have like 10 actors and 100 aliens in the film [Valerian]. And they come from the four corners of the universe. Some of them are liquid. Some of them are just [so visually] crazy.

For example, in your house, you have the heater on the ground itself. Here, it's the gravity. No matter where you are, that's where the gravity is coming from. It's almost like a carpet that you put down. If you're on the other side, it doesn't matter to us because we're still walking on the ground. Actually, at the beginning of the film [Valerian], we see when they install the gravity system.

I would rather stop [making movies] too soon than too late.

I saw Cara Delevingne like five, six times. And I was never talking about the film [Valerian]. And then at the end, I say okay, let's do some test. She says yeah, yeah, good. So I took her in the room, and I test her for like six hours non-stop. Exercise, exercise, exercise for six hours. It was actually funny. And then I knew at the end of the six hours.

My concern 99% is about the storytelling, the emotion and all this. I never think about the format of anything until way far in the process and when we arrive to the fabrication of the thing then we start to say, "Okay right, what is the best thing we can do." I choose the car before to choose the color.