It's the deepest relationship between Giancarlo Giammetti and Valentino Garavani I've ever seen, and no one's ever really scratched the surface with them. They weren't really openly gay. They're in Rome, the city of the Vatican. They didn't discuss this relationship, which I think is one of the great relationships. It's beyond a marriage; it defies words. But maybe it doesn't defy pictures.

I reject criticism because the last thing I wanted was to sit there and look at people talking. I think people are conditioned to think of documentaries now as talking heads. This movie about Valentino is not about that at all. It's about watching people in action. To the critics who wanted more talking heads, I send a dozen dead roses.

When Karl Lagerfeld does a documentary, it's Karl Lagerfeld spouting in front of the camera for two hours. Valentino isn't like that. He's not very verbally expressive. He's very controlled and he needs to be perfect all the time - never a hair out of place, always the impeccable outfit.

Giancarlo Giammetti has a lot of nervous energy. He's a director, really. He was trying to direct the Valentino movie over my shoulder. I don't blame him - that's been his job for 50 years. But I had final cut in the movie by contract and I wouldn't have made the movie if I had not been completely independent.

Valentino lives his life like the Queen of England - he lives in the bubble. But he designs for royals, so it's almost a business decision, even though he would do it anyway. He wants to be part of that world.

They would sort of keep you on your toes that way - that kind of Italian allergic reaction to eagerness. It's very bruta figura, bad form, to be eager. You sort of glide in and have a conversation and work things out, then it takes two days to get up and running.

Valentino Garavani is never really shown himself as anything other than this gracious diplomat of the dolce vita. That's his preferred look. But he's a temperamental genius - a man of cyclone force, passion, and perfectionist impulses who has very little tolerance for things that aren't exactly as he wants them to be.