Factual error: In the opening scene Watson is typing on an Underwood typewriter. Given the last scene of the movie, the first scene took place shortly after Holmes' "death", namely in 1891, or maybe 1892. Underwood started making typewriters in 1895 but those were labeled as "Wagner." The Underwood label was first used in 1900.
Sherlock Holmes: A Game of Shadows (2011)
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Directed by: Guy Ritchie
Starring: Robert Downey Jr., Jude Law, Rachel McAdams, Jared Harris
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More mistakes in Sherlock Holmes: A Game of Shadows
Dr. John Watson: How did you know I would find you?
Sherlock Holmes: You didn't find me, you collapsed a building on me.
Trivia: The final chess match between Moriarty and Holmes is based loosely on a famous chess match between chess masters Bent Larsen and Tigran Petrosian. The match involved the sacrifice of a queen and a surprise checkmate, thus mirroring Holmes' apparent sacrifice of himself to stop Moriarty.
Question: In the scene when Moriarty is doing a book signing, his aide sits and hands him a piece of paper with what looks like some kind of grouped numbers together. What is this and does it get referenced later in the film?
Chosen answer: That's the key code for his fortune concealed in his library. The one Mrs Watson uses to relay to Inspector Lestrade. Like the book reference numbers in a public library.