I think Brad [Furman] crafted an amazing film [The Infiltrator]. It's so complex, it's incredibly thrilling, incredibly touching and it's what people have been trying to do for years in Hollywood, is to try to capture what it's like to be undercover, what is that duality of life? And I think that Brad really caught that.

That's the happiest I am, when I'm doing great work.

Voices come to me but to maintain them is hard work. They go away just as easily, so I have to remember them and that takes work. With Sid, I needed to make sure you could understand what he is saying, his enunciation. Sometimes I couldn't even say my own name [his name] in his voice. It sounds like 'Shid', it sounds a bit like he has a lisp.

[Brad Furman] wants to try stuff, he's willing to try stuff. And he wants electricity on the camera. And that's what I want, I want electricity whenever I'm performing.

The message is one of the beautiful things about the film. And I think part of the appeal is simply that they are prehistoric creatures, they are no longer around and that makes them magical and makes us feel quite emotional, because we know that those creatures did not survive in the long run, so there's poignancy in their fight for survival.

t is for me because I needed to do this. I really think actors shouldn't act unless they really need it in their lives. I think it has to be something that is so much a part of your chemistry, such a passion, that you can't live without it. You should not do it just because you are seeking fame or want to get rich.

I love his [Brad Furman] ferocious desire for perfection and his love of vitality, it feeds me, man. It feeds him and it feeds the whole crew. And he's got huge respect for talent. And that's why talent goes in and gives it 300% percent.