"Three Wise Girls" with Jean Harlow was released in 1932, but there's a great Model A product placement scene, with people in the star's home town drooling over and discussing a "new model" '31 sedan and telling kids not to touch it. The scene is actually part of the plot; folks "back home" aspire to a new Model A while the star moves to NYC and ends up with a Cadillac town car.