I wrote the entire history of Alpha because the space station was around for 500 years. I have 30 pages on the history of Alpha. Every ten years what happens. They took control and what happened. Every 80 years, they have to change the communication system because it doesn't work anymore. Some aliens come with new technology, and suddenly you can change the electric system. We wrote the entire story [for Valerian]

My biggest surprise is probably the level of involvement of all the artists [in Valerian] who participated at every level.

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.

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.

It's always the small people who change things. It's never the politicians or the big guys. I mean, who pulled down the Berlin wall? It was all the people in the streets. The specialists didn't have a clue the day before.

After six, seven films, I started to get a little tired. Shooting takes a lot out of you.

I think it's the society that drains us out, and we are in a society where we are driven by money.