Sherlock Holmes: Uh, hmm... Right. Where are the wagons?
Madam Simza Heron: The wagon is too slow. Can't you ride?
Dr. John Watson: It's not that he can't ride... How is it you put it, Holmes?
Sherlock Holmes: They're dangerous at both ends and... Crafty in the middle. Why would I want anything with a mind of its own bobbing about between my legs?
In the scene when Sherlock Holmes and his crew are running through the forest, the barrel of "Little Hansel" can be seen being raised up to 50°, which would cause a parabolic trajectory, but the shell travels in a horizontal path as it blasts through a tree and past Holmes.
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.