Trivia: Tinker, Tailor, Soldier, Spy
- Dawson Casting: Karla's daughter is supposed to be in her twenties but the actress is in her thirties.
- Hey, It's That Guy!: It's an All-Star Cast which includes Commissioner James Gordon, King George VI, The Emperor Caligula, Julius Caesar, Bane, The Dream Lord, the thoroughly modern Sherlock Holmes, his nemesis from the 2009 film version and many more!
- What Could Have Been: Oldboy director Park Chan Wook was offered the film at one point.