Vivienne Westwood

I've got a real sense of three-dimensional geometry. I can look at a flat piece of fabric and know that if I put a slit in it and make some fabric travel around a square, then when you lift it up it will drape in a certain way, and I can feel how that will happen.

The main message of Climate Revolution is that climate change is caused by the rotten financial system we've got, designed to create poverty and rip off any profits for a small amount of rich people. Meanwhile, it destroys the earth.

After 'Sesame Street,' it's a hyper-familiar world to me and I have this childlike ability to ignore the fact that I'm talking to scraps of cloth. Every country I go to, I see posters promoting the film in different languages. 'Los Muppets' - I love that!

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.