Olivia De Havilland and Vivien Leigh played a trick on Clark Gable during the filming of Gone With The Wind from which he is said to never have fully recovered. After Melanie has given birth, Rhett arrives to save the day, lifting her out of bed and carrying her down to the wagon he's stolen. Before the scene was filmed, the women tied a heavy brick to De Havilland's torso. Not wanting to insult his co-star, he said nothing of her weight and went through with the scene. He suffered from back pain for the rest of his life.