The cartoon
- Acting for Two: Graham Fellows voices all three main characters.
The film
- Fake Brit: Jane Wyman as a Cockney.
- Hostility on the Set: The biography of Marlene Dietrich by her daughter said that Dietrich did not particularly like Jane Wyman, perhaps because they were such opposites.
- Romance on the Set: According to Marlene Dietrich's autobiography, she began a heated love affair with Michael Wilding while making this movie. Dietrich and Wilding never married, though Dietrich had been estranged from her husband for many years (and remained so until his death).
- Uncredited Role: Marlene Dietrich's costumes were designed by (an uncredited) Christian Dior.
- Wag the Director: In an extraordinary move for the normally controlling director, Alfred Hitchcock allowed Marlene Dietrich an exceptional amount of creative control for this movie, particularly in how she chose to light her scenes. Hitchcock knew that Dietrich had learned a great deal of the art of cinematography from Josef von Sternberg and Günther Rittau and let her to work with Cinematographer Wilkie Cooper to light and set her scenes the way that she wished.
- What Could Have Been: Alfred Hitchcock originally wanted to cast Tallulah Bankhead for the role of Charlotte Inwood. But the studio suggested casting Marlene Dietrich instead.
