I know a lot of the intense moments in 'Titanic' were made that much easier and were pushed to even further limits because of that relationship.

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.

There's so many intangible forces that come into play when making a film, I have no idea what the public will ultimately think of something that I do, let alone critics.

I think it's a real danger, as an actor, when you try to make some statement through your career about what the business should be doing or ultimately what your image should be or how you want to be perceived. I look at every project that comes along and say, "Is this something I can sink my teeth into and can do a good job on?" That's really how I choose roles.

My dad has always been the bohemian.

I've been planted here to be a vessel for acting... That's why I'm really taking any part, regardless of how complicated it's going to be.

Global warming is not only the number one environmental challenge we face today, but one of the most important issues facing all of humanity... We all have to do our part to raise awareness about global warming and the problems we as a people face in promoting a sustainable environmental future for our planet.