If it's a good work of adaptation, the book should remain a book and the film should remain a film, and you should not necessarily read the book to see the film. If you do need that, then that means that it's a failure. That is what I think.

The Germans sell chemical weapons to Iran and Iraq. The wounded are then sent to Germany to be treated. Veritable human guinea pigs.

I have my dark side. You have your dark side. From the second that we have a brain, there are things that are not right - we are human beings with all these illusions and complexes and everything. That's attractive to me.

Life is absolutely unbearable. And we're going to die.

The best thing I ever did in my life was to ask, 'Do I like everybody?' And the answer was, 'No.' So why should everybody like me? If people are against me, so what? I'm against them too.

I wrote the plot [for the Persepolis ]and Vincent [Paronnaud] and I wrote and discussed the shooting of the script. Vincent then took care of the production design, the actual shooting, and what was going on within each scene. It's very difficult, though, to draw a line between who did what. Because Vincent would say something, and I would add something, and at the end you have this film, yet no clear idea of who did what.

I chose the actors that I was in love with. I cannot work with people that I don't personally like a lot. They can be the best actor in the world, but if the first contact is not good, if I don't fall in love with them, then I don't want to work with them. It's impossible.