And now it's your turn - the time to answer the greatest challenge of our existence on this planet is now.

The truth of the matter is this - I never look for films specifically, because ultimately if the fundamentals of the character and the script and the director aren't there, it makes it a moot point.

We actually did a lot of takes on this movie [J. Edgar Hoover]. I never left the set wanting more. That's for sure. I don't know. This was a very difficult character for me and a lot of the other actors here, and at times we went and did 8 or 9 or 10 takes on a single day.

I've changed. You can't help it. Your mind starts working in a different way. You feel really scrutinised by people.

If you can unify the public mind saving an iconic species like the tiger, like they did with the panda, that means you have to protect their habitat and everything that they hunt. And that means saving massive, thousands of acres for them to be able to roam and breed. So it's more of a land effort.

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.

As an actor, you're constantly searching for that great character. Also, being a history buff and learning about people in our past and amazing things that they've done, I came across a book about Howard Hughes and he was set up as basically, the most multi-dimensional character I could ever come across. Often, people have tried to define him in biographies, but no one seems to be able to categorize him.