Well Diana Ross wore silver slippers in the Wiz so the fear of litigiousness has been around for a while.
"I'm not allowed to" or "I'm not allowed to without handing over a but load of money" are also both good reasons. Which made his answer to the question seem even more political that he artistically and stylistically chose not to borrow from MGM because he was interested in his own unique vision... But how much would it have cost to use Ruby slippers?
Do you think David E Kelly paid for his slippers, when he dressed Camille up in full Dorothy during an early episode of Chicago Hope to soothe a trichotillomaniac? Or did they slip that under the wire as a parody?
Did any one see the evil dead Car?
Sam's supposed to put it in all his movies some where.