Sherlock Holmes and the Secret Weapon (1942)

In the midst of World War II, Sherlock Holmes rescues the Swiss inventor of a new bomb-sight from the Gestapo and brings him to England, where he quickly falls into the clutches of the evil Professor Moriarty.

Directed by: Roy William Neill

Starring: Basil Rathbone, Nigel Bruce, Lionel Atwill, William Post Jr., Kaaren Verne, Dennis Hoey

Links: IMDb, Movie posters, Movie stills