This is a cute political comedy starring Frank Morgan of Wizard of Oz fame. It was directed by Roy Rowland and produced by Robert Sisk from an original screenplay by Isobel Lennart and William Kozlenko.
Holmes and Watson meet Inspector Lestrade on a train to Scotland, in which Lady Margaret Carstairs, the owner of a famous diamond, the Star of Rhodesia, and her son Roland are travelling. The owner has asked Holmes to guard the huge diamond, but soon Roland is murdered and the diamond stolen. Holmes must find the diamond and uncover the murderer, both of whom must still be on the train.
This is a pre-code film about some frivolous rich people, a young secretary, and the weird goings on in 1930. It stars Basil Rathbone and Constance Bennet.
Working from quartet of Eugene O’Neill plays, John Ford created a hauntingly dark dramatic universe, populated with his usual stock company of players augmented by John Wayne in the role of the naïve Swedish sailor Olsen.