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

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.

I don't know if tennis players feel like that but when you have a great opponent - although I didn't feel like he [ Ben Mendelsohn ] was an opponent - you just know your game is going to jack up and it's just going to raise the bar. I couldn't wait for that elevation.

My mom [comes] to see my shows because she's so proud, but I'm talking about losing my virginity, my ex-wife and our sexual problems, and she's sitting in the front row smiling. I just go, "Mom, you can't sit in the front row, you can't smile. You have to go way in the back and dress in black. If I see you it's like you're breaking in when I'm having sex with my wife. It's just wrong."

People can be anonymous when they go on blogs and say crazy things that they would never have the courage to say to your face.

It used to be trained professionals doing animation and they were great. Now they have celebrities and famous actors doing the voices, but that does not always work. But I think this film turned out really well, partly because the three of us (me, Ray and Denis) are comedians who are used to doing solo acts and doing certain types of voices. The three of us are New York guys, we all came up the same way in the profession and we are all edgy and enjoy doing family movies. It was a good combination I think.

You know, I am kind of a bi-polarish schitzerphrenic. I run the gamut of being incredibly shy and withdrawn to being a crazy-eccentric exhibitionist. And I have always been like that.