While Boris Karloff was filming his scenes he had his customary 4:00 pm tea break, which he always had written into his contract. They became so popular that even Gary Cooper and Charles Chaplin came on set for tea, and Paulette Goddard had a 4:00 pm tea break written into her contracts for the rest of her career.
Film marked the 20th anniversary of Gary Cooper being a Paramount contract player. It was also his last film for the studio.
The famous Swedish actor Edvard Persson was travelling through the US to make Jens Mansson in America (1947) when he came to Hollywood and made a cameo appearance in this film. The director, Cecil B. DeMille, reciprocated with a cameo appearance in Persson's movie.
Features 25 name players and 4,325 costumed extras.
Gary Cooper got a salary of $300,000--double what he usually made--and a percentage of profits: 5% of the gross to $6 million and 10% above $6 million, with a minimum guarantee of $300,000.