The distribution systems and the cinemas have adopted to the blockbusters, and they now get their main income from selling popcorn, and if you don't make a film that sells popcorn, it's very hard to get it out there.

One of the beauties of 'The Girl with the Dragon Tattoo' is the very delicate and strange relationship between the two main characters.

It's a disease we have that we think that everything is explainable. It's a merchandising idea because you can sell explanations and cures for everything, but it doesn't work like that. It's very hard to understand everything.

Norway is a small country, about half the size of Sweden, but it has a very good film climate because they have municipal cinemas, so even in the smallest towns you have a cinema that shows art house films from all over the world.

Maybe there is something specifically Scandinavian that comes out of the long, dark winters - you have to learn to laugh at misery, in a way.

I did a Norwegian film called 'Insomnia' that was remade and that was a good remake by a good director, so I'm honoured.