This was a very troubled production. Director Robert Hamer was struggling with the alcoholism which would eventually kill him only a few years later, and had so much difficulty with Bette Davis that he had several lapses during filming, with only the support and kindness of his friend Alec Guinness (who had insisted on him as director) getting him through the ordeal. Davis, whose career was in a major slump, was angry at being restricted to a cameo and was unpleasant to everyone on set - Guinness later commented that her legendary professionalism was "largely a myth". Daphne Du Maurier, the authoress of the original novel, had also created difficulties by interfering with the filming and offering complaints at perceived deviations from her original story. MGM had no faith in the film and extensively re-edited it after shooting was completed, also imposing a score which Hamer did not want composed by studio veteran Bronislau Kaper.