The text of the note that Holmes leaves Watson on the packing crate reads: "Come at once if convenient. If inconvenient come all the same". This quote is taken directly from Holmes creator Arthur Conan Doyle's short story "The Adventure of the Creeping Man." See more »
When "Little Hansel" is fired, the slow-motion shows boiling red flames and black smoke emanating from its muzzle, which are obviously gasoline-fueled. The only artillery shell propellant in use at the time would have been gunpowder, which produces a brief flash with cinders and white smoke, but no flames. See more »
Dr. John Watson:
The year was 1891. Storm clouds were brewing over Europe. France and Germany were at each other's throats, the result of a series of bombings. Some said it was the Nationalists. Others, the anarchists. But as usual, my friend Sherlock Holmes, had a different theory entirely.
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During the ending credits, excerpts from the Doyle story "The Final Problem" are shown. ("The Final Problem" was the basis for the movie.) See more »