The symbol on the title page of each story is a W. Somerset Maugham superstition. Copied by his father on a trip to Africa, it is a Moorish symbol to bring good luck and ward off the evil eye. Maugham had it printed in his fourth novel, but unfortunately upside-down and the book flopped. Printed correctly on subsequent books, he became a best-selling author and had the motif reproduced everywhere, including his Riviera house, Villa La Mauresque.
In an unusual coincidence, this movie has one actor and one actress who would have eternal associations with the James Bond film franchise. Bernard Lee, who played M, and Honor Blackman, who played one of the most famous Bond girls in Goldfinger (1964), Pussy Galore. Despite the name Ian Fleming on the credits, he is not the same man who wrote the Bond novels.
Linden Travers and Cecil Parker previously teamed up as an adulterous couple in Sir Alfred Hitchcock's The Lady Vanishes (1938).