Start [the movie] in color. Color is always attributed as fun, and black and white is very sad.

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.

Maybe the biggest problem is that there's no empathy. Nobody puts themselves in the place of others. Everyone thinks they are the only one to suffer. Or that they're the only ones who like ice cream or take their kids on vacation.

Always keep your dignity and be true to yourself.

I wanted to make a real love story with a bad ending, because a love story that ends good is the life of everyone - you and I, for example. I always say to people, You know, if Romeo and Juliet got married, nobody would care about them. Imagine Romeo and Juliet, six kids yelling, mama, mama, papa, papa.

If you know a little bit the psychology of human beings, you have to understand that if you say something you should not do, then everybody wants to do it.

It's cinematographic to smoke. Imagine Lauren Bacall without a cigarette.