You know sometimes you're in a position of risk and you feel that you can turn good or bad.

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

Sometimes I see people finish a film and they go, "Yeah, that was good. Where are we going to eat?"

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 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]

I won't be able to do a film just for bad reasons, for money or for - I just can't. If I have one more where I feel I can bring you something, I will do it.

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