Acting is not about being someone different. It's finding the similarity in what is apparently different, then finding myself in there.

The key to every actor is deep, deep insecurity.

First I'm going to thank Don because when you thank your husband at the end of the speech they play him out with the music and I want him to know that everything I value most in our lives you've given me.

Yeah, I did need a lot of breath [to play Margaret Thatcher]. I needed much more breath than I have, after all of my expensive drama school training. I couldn't keep up with her.

I don't think we can say that all working women will get divorced - it's so dangerous to make these things emblematic of anything - but having said that, every person who has a big, important job and tries to have a family, has to make decisions every single minute.

I feel much more comfortable dressed in jeans and a T-shirt. I'm wearing very fancy clothes today. It's Valentino. But the film ["Devil Wears Prada"] did not make me change my style. If anything, it has made me appreciate the people who do this every morning in a serious way, get dressed up and really put together that look. I mean, wow. It's amazing.

How do I do that preparation [for film]? Just an immersion. I have a musician's, I guess, ear for the sound of the voice but it's also important to me, in the case of [playing] someone who is controversial, to get the outlines of the character right because how they present themselves to the world has a great deal to do with how people feel about them.