The Private Life of Sherlock Holmes Mycroft Holmes after George Sanders' failing health removed him from the role. Elaborate sets were built on the backlot at Pinewood Studios including 150 yards of the Baker Street set at a cost of £80,000. The reproduction of the Diogenes Club stood until 1973 having been used in other films such as "Hands of the Ripper" and "Carry On at Your Convenience". The sets were designed by art director Alexandre Trauner. The scenes in Scotland were filmed on location at Urquhart Castle on the banks of Loch Ness. The film originally contained another two separate stories, and a further flashback
Mycroft Holmes [...] the most indispensable man in the country." He apparently serves as a sort of human computer, as stated in "The Bruce-Partington Plans": Mycroft appears or is mentioned in four stories by Doyle: "The Greek Interpreter", "The Final Problem", "The Empty House" and "The Bruce-Partington Plans". While he does occasionally exert himself in these stories on behalf of his brother, he on the whole remains a sedentary problem-solver, providing solutions based on seemingly no evidence and trusting Sherlock to handle any of the practical details. In fact, Mycroft's own lack of practicality is a severe handicap despite his inductive talents: