I'd worked in Clockwork Orange with Stanley Kubrick and since Stanley was such a prestigious director this opened all sorts of doors for me - one of them being Star Wars.
George Lucas was casting about and had heard favourable things about my work in Clockwork Orange and asked me to come in, which of course I did even though no one knew what the film was about!
I've seen the teaser trailer for Revenge of the Sith though and I think it will be excellent.
Actually, the Department of Transport were at one stage going to sack me.
I am doing better now though one of my legs is shorter than the other due to the operations.