We're on this rock and we can choose to treat each other well or we can choose to kill each other and be uncivilized. I don't know. It's very tragic. It's a very tragic thing to think about.

As an actress, it's part of your job to be able to imagine just about anything - even if it's not within your personal experience.

As Ralph's character begins to discover the political thriller aspect of the film, he falls deeper in love with his wife, so the two run together. That's the beauty of this film. It has fast pace and excitement, but it also has heart and soul.

I prefer being as far from the centre of celebrity as possible.

I love to take baths.

Seeing someone you know be good at something is really appealing. Seeing how Darren Aronofsky behaved on set, it was another aspect of him, the director. He'd never directed me at home in the kitchen before. It was just seeing a whole other aspect of someone. It was really, really exciting. I loved it.

Because I think in order to get famous you have to be known for something. Like 'You're the romantic comedy girl' or 'You're the Oscar-winning whatever girl.'