At some point in your career, someone is going to tell you, "This stove is hot. Do not touch this stove." And the weird thing is, you'll want to touch it. But resist that urge, man.

You can make history, or you will be vilified by it.

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.

[Success] always starts with the material; it always starts with the truth and honesty of the characters that you read in the screenplay and that's rarely something that can be remedied if it's simply not there by the time you shoot the film. Thank God we had that.

Our oil-based society depends on non-renewable resources. It requires relentless probing into vast reaches of pristine land, sacrificing vital bioregions, and irreplaceable cultures. The possibility of catastrophic climate change is substantially increased by the 40 million barrels of oil burned every day by vehicles. We must all move shoulder to shoulder in a unified front to show this administration that the true majority of people are willing to vote for a cleaner environment and won't back down.

I lived in Hollywood and, ironically, I didn't know you could just go out and get an agent and go on auditions and try and become an actor, I thought it was like a Masonic thing, like a blood line you had to belong to – until I was 13. Then I realised what you had to do. It is the one thing I know I want to do for the rest of my life.

Marty [Scorsese] knows that when an improvised moment comes out of a real situation, it's gonna have more life and more going on than anything you can imagine and that's how the character can become the story