"It’s not as if we’re specifically thinking of jokes for adults and jokes for children. We think of jokes, and occasionally we’ll think of an adult one, but it’ll detract from the story. People will say ‘I don’t understand that, what’s going on’. So if that happened, we probably wouldn’t use it. There’s the occasional joke that kids won’t get, but it if doesn’t interfere and it’s fun, then that’s fine."