The 39 Steps (1935 film)

The 39 Steps is a 1935 British thriller film directed by Alfred Hitchcock, starring Robert Donat and Madeleine Carroll. Very loosely based on the 1915 adventure novel The Thirty-Nine Steps by John Buchan, the film is about an everyman civilian in London, Richard Hannay, who becomes caught up in preventing an organisation of spies called the 39 Steps from stealing British military secrets. 

After being mistakenly accused of the murder of a counter-espionage agent, Hannay goes on the run to Scotland with an attractive woman in the hopes of stopping the spy ring and clearing his name.