Cleese in agony after Python scenes
John Cleese was left in so much agony after filming scenes for cult comedy Monty Python he had to stop the comedy routines.
During the sketch shows Cleese would carry out a silly walk to make people laugh while he was in character.
Palin has revealed the scenes left Cleese in agony - but the actor tried to continue because the fans enjoyed it so much.
He says, "John found it physically impossible. He did it in terrific and violent pain while people roared with laughter."