The great writers like Chekhov know that tragedy and laughter are just a few steps from each other ... but it took me a long time as an actress to learn that. Actually Arthur Miller taught me in the Seventies. We were making a CBS TV drama of his play Playing for Time about Auschwitz but the characters were laughing. It was a big insight for me to realise that that was what's called gallows humour, in this case worse than the gallows, that humans need to laugh and make jokes in order to survive.