 John Cleese (qv) as Tim the Enchanter actually stood on the  pinnacle seen at the beginning of his scene. On one side was a drop  he said could have killed him, and on the other was a drop he said  could have maimed him. To make matters worse, the wind kept  threatening to push him over either side. Between takes, he would  crouch down to avoid being pushed over by the wind. The whole  experience was one he remembers as being very frightening, but he  did it anyway, because he knew what kind of budget and time