While talking to IGN Movies, Gibson revealed what he knew about Mad Max 4, "George [Miller] is working on something. George is like Einstein. I'm serious, he's like Albert Einstein. George Miller makes films like that. It's all mathematical. He has five sets of the same clothes. He's probably still got the white shirt, the blue pants, and the blue and white polka dot tie. Five sets so he doesn't have to make a decision about what to wear, but that it's clean every day. He will literally sit there and brood over a problem for years. Take his time. And be interested the whole time, like Einstein. I think he's probably been working away on the script for twenty years."