* AdaptationDisplacement: As usual for Hitchcock, the film is better-known than the original Jack Trevor Story novella.
* AngstWhatAngst: Jennifer is not really upset upon finding Harry dead. [[spoiler:Though they were married, she did not care for him due to his indifference to her most of the time.]]
* GermansLoveDavidHasselhoff: The original release made more money in Europe, among moviegoers used to this kind of BlackComedy, than in America, among moviegoers expecting thrills and suspense like those of ''Film/StrangersOnATrain'' or ''Film/RearWindow''.
----