Vivien Leigh in a Make-Up Still for Gone with the Wind, circa February 1939.
Original caption: “A dust-up that looks like the McCoy is this Baby Blitzkrieg staged between Spencer Tracy and Clark Gable in the filming of Boom Town. The stars, who play the roles of two rivals oilmen, lock an office door and go to work on each other until friends break in and enforce an armistice. Tracy is taking a Gable right on the button here." (21 June 1940)