I touched emotions I've never tapped in my entire life. I've heard people say, 'I hope this movie doesn't glamorise drugs.

I became an actor at a very young age, but I also had a deep respect for nature and I think I was sort of a little biologist when I was younger. I watched documentaries on rainforest pollution and the loss of species and habitats for animals around the world. It affected me in a very hardcore, emotional way when I was younger. So, later in life I wanted to continue that path more and investigate and learn more about ecological issues.

I created my foundation as a result of that and my website, and I try to shed some light on some very topical issues right now. The idea is to try to get people to become obviously more knowledgeable about the issue and try to get corporations and individuals to contribute to these nonprofit organizations.

I got everything I need right here with me. I got air in my lungs, a few blank sheets of paper. I mean, I love waking up in the morning not knowing what's gonna happen or, who I'm gonna meet, where I'm gonna wind up. Just the other night I was sleeping under a bridge and now here I am on the grandest ship in the world having champagne with you fine people. I figure life's a gift and I don't intend on wasting it. You don't know what hand you're gonna get dealt next. You learn to take life as it comes at you... to make each day count.

We're at risk of losing this iconic species for all time. Once it's stripped of its natural instincts, it's no longer a tiger. But there's a lot of species like that. The more intriguing thing, throughout Asia, a lot of these countries are selling off their jungle-and-forest rights for oil and for paper-and-pulp companies.

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.

People always ask, 'Was it fun? Was it fun working on a movie?' I don't know if that's the operative word. It is challenging and interesting and all those other things, but fun isn't always.