 The episodes English dub title, "To Be or Nazi Be" is a riff on  both versions of the movie "To Be or Not to Be," by Ernst Lubisch:  Lubischs own 1942 film and the 1983 remake by Mel Brooks. Both  films involved a troupe of Polish actors who dressed up as Nazis to  make fools of the Nazi military government. This included one  character dressing up as Hitler, as Lupin did in this episode.