 Grant agreed to play the part on condition that he be given top billing, and that his salary would be $137,000, which he donated to the British War Relief Society.The pairing of Cukor and Gable would have been problematic in any case, as they had not gotten along on the recent "Gone with the Wind", and Cukor had been replaced with Victor Fleming, who was a friend of Gable's.The film was in production from July 5 to August 14, 1940 at MGM's studios in Culver City.