Revealing mistake: Inventor Dr.Tobel is shown with his bomb sight. Later in the film we see the same equipment, only this time it is Sherlock Holmes' ultraviolet light apparatus. (00:22:05 - 00:45:30)
Continuity mistake: During Holmes and Moriarty's conversation at the latter's stronghold, while Holmes is saying that Moriarty wants to commit ordinary murder, the position of Moriarty's hands changes between shots. (01:00:38)
Continuity mistake: Holmes says "One last warning" and looks at the Nazi on his left. In the next shot, he's now looking at the Nazi on his right. (00:03:48)
Other mistake: Moriarty writes the fourth name and address of Tobel's code; he spells "Frederick Hoffner Sloane." However, as he reads the paper on which he has written the words, he also reads the word "Square," even though he has not written it. (00:54:35 - 00:55:00)
Chosen answer: It's possible. Even during WWII, people were less savvy about protecting personal information, particularly as asking for a home address seems innocuous enough as opposed to giving out government or military info. Of course, this is a movie, so some liberties are taken to serve the plot.
raywest ★