More What's My Line?

So often the Mystery Guests on What's My Line? are big movie stars, even by today's standards, but occasionally some stand out even more.  Today we have a screen legend -- Gary Cooper.  He doesn't fool the panelists all that much, but that leaves them more time for a nice chat between host John Daly and Cooper, who's on his was to the Soviet Union for the opening of one of his movies.

Also fun too is that one of the panelists is another movie star himself, Anthony Perkins.