Mel Gibson: He is so laid back; he's not a screaming guy, he doesn't get mad or angry. He has a lot of self control to not become the slave of his own passions. He's a tough guy, he's a tough dude. I'm talking like, he doesn't eat, he doesn't sleep, he only smokes cigarettes. And when they drop the atomic bomb, and everything is wiped off the planet; there'll be rats, cockroaches, and Roland Emmerich there with his cap and a cigarette, all at the end of the day.