A bit-part actor finally got his first leading role in a major film. In one scene the actor had to jump off a high diving board in to a swimming pool. He climed to the top of the board, looked down and promptly climbed down again.`Whats the matter? asked the director.`I cant jump from that board! said the actor. `Do you know theres only one foot of water in that pool?Yes, said the director. `We dont want you to drown, you know.