But short films are not inferior, just different. I think the short gives a freedom to film-makers. What's appealing is that you don't have as much responsibility for storytelling and plot. They can be more like a portrait, or a poem.

It's harder being a woman director because on the whole women don't have husbands or boyfriends who are willing to be wives

For me, being a director is about watching, not about telling people what to do. Or maybe it's like being a mirror; if they didn't have me to look at, they wouldn't be able to put the make-up on.

So many actors are not open in front of the camera - they have a persona.

I would love to see more women directors because they represent half of the population and gave birth to the whole world. Without them the rest [of the world] are not getting to know the whole story.

There was a big drive when I was at art school to make you aware of the economy of meaning - after all, this was still during the tail end of minimalism. Being responsible for everything you put in your picture, and being able to defend it. Keeping everything clear around you so you know what is operating. To open the wound and keep it clean.

I took four years off after 'In the Cut' because I wanted to see who I'd be without work. I even tried being a hermit in the wilderness in New Zealand. I stayed in a warden's hut two-and-a-half hours off the Routeburn Track through the fjords on the South Island. It was early winter, so there was no electricity or running water.