Gossip Friday: Know It Backwards

From November 1938:

As a very special favor, I was permitted on the “Idiot’s Delight” set–and understood the guarded doors when I found them filming the tap-dancing sequences Clark Gable hates so much. Director Clarence Brown asked Clark if he wanted a rehearsal before they started shooting, but Clark brushed him aside. “Naw,” he growled, “I know the thing backwards.” One take half-completed and Brown shouted “Cut!” Walking over to Gable, he added, a grim note to his voice: “Clark, I think you’re right. You know it backwards–but that isn’t the way we want it done!”