I just had a son and had to take him to the paediatrician and he measured his head and apparently he's in a group in which only 14 per cent of the population have a bigger head than him. Then she said: "Do you mind if I measure your head?" I said: "Go ahead." And she was shocked, because less than one per cent of the world's population has a bigger head than mine. So I guess that means I'm pretty full of myself. Or that I have a huge brain.

I'd rather be the king of kids, than the prince of fools.

I'd just like to be in films that I would like to see. I think of myself as an entertainment arsenal. Like I have my acting bazooka and my music machete. And you don't know what I'm going to come at you with.

Part of the acting gig is when you're let loose some improvs and put stuff into your own words every once in a while. That doesn't get you a writing credit or more money. It just makes it more fun.

When you get to a certain level of recognizability, celebrity, you can't go out of the house without someone going, "Can I just have one photo?" I don't mind, by the way, if anyone wants one we can take some photos. But sometimes you just wanna stay in the house or in the hotel room with the shades closed.

I'm not thinking about forcing my kids to watch my movies. It's always awkward when someone says: "Hey, I wrote a song, can I play it for you?" That would be the dynamic, if I was like: "Hey, you're my son, watch my work!" I don't want to put them in that awkward position. Just because when they get older, that's when I'm worried, that they'll judge me and say: "Yeah, my father's ******* Jack Black. He was in that cheesy movie." So, I'm going to keep it all high quality. It'll be a quality controller.

Justice is a word that resides in the dictionary. It occasionally makes its escape, but is promptly caught and put back where it belongs.