 Gordon Jump (qv) auditioned to play Mr. Weatherbee. He did not get  that role but the producers liked his audition so much that they  cast him as Mr. Andrews. But nobody notified Jump and he showed up  for filming ready to play Mr. Weatherbee. When he was told of the  error, he took a copy of the script and went off to a corner of the  studio. In just a few minutes, he was prepared to play Mr. Andrews.