o matter how much research you do, or invention you do, whether it's a character from a novel, a completely invented character or someone who actually existed, it's a work of faction. By the very fact you only have an hour and a half or two hours to tell a story, you're telescoping events and it is, in the end, a work of imagination.

I'm of the opinion that it's okay to be silent, to not speak if you don't have anything to say.

And perhaps, those of us in the industry who are still foolishly clinging to the idea that female films, with women at the center are niche experience, they are not. Audiences want to see them and, in fact, they earn money. The world is round, people.

It's part of my job. You can't play Veronica Guerin sounding like this. It just wouldn't wash. But what I find fascinating about doing an accent - unless it's a farce - is that it's not slapped on.

At the moment there are 1 in 8 people who have no access to clear drinking water, about a billion people worldwide, which can make you feel quite overwhelmed.

I love theatre - it's where I started - and I've directed a play myself. I'm not sure if I want to direct a film, but certainly, as an actress, I'm always thinking, 'Surely this must be my last film.'

An actress once advised me, 'Make sure you do your own laundry - it will keep you honest.'