Sam [Mendes] said he took advantage of the fact that Kate and I were so close for many years. He knew it was something he could harness in our performances, and we knew that too.

You can either be a vain movie star, or you can try to shed some light on different aspects of the human condition.

Right now, our mother -- our mother -- all of our mothers, Mother Earth is hurting. And she needs a generation of thoughtful, caring and active kids like all of you to protect her for the future. You can help us win the battle to clean up our air, our water, our land, to protect our forests, our oceans and our wildlife.

I hate complaining about paparazzi, I hate complaining about being recognised, because if I ultimately didn't want to be an actor or in the public eye, I would quit doing what I do. That's not the reason I do it, but I love the work so much that it's worth it.

I didn't worry about what DeNiro thought... I went in, looked him in the eye, and got the part. I was confident, even though I'd never done anything like it before. Now I realise it was ignorant confidence-I had no idea.

I urge individuals around the world to stand up, and ask local leaders, if they haven't already, to pledge to purchase cleaner cars, build green facilities, and buy green power like wind or solar energy. Our actions may determine if we become a casualty in the war for a habitable planet for generations to come.

The last thing I want to turn into is a fat Hollywood jerk. I was brought up without much money and I was happy. I don’t think that I will strive for money or success and end up greedy or big-headed. That only leads to unhappiness. I can still be down-to-earth and do this job as long as I enjoy it.