The 39 Steps (1935)

A simply wonderful, sophisticated, adaptation of John Buchan's book of wartime espionage and murder. Robert Donat ("Hannay") goes to the theatre to see a man with an incredible memory; but instead becomes embroiled in a tale of cloak-and-dagger antics that see him accused of murder and forced to flee to the highlands of Scotland. It is here that he encounters a sceptical Madeleine Carroll and together they try to get to the bottom of this clever mystery. The dark and eerie Scottish scenery adds to the suspense and there are two good cameos from Peggy Ashcroft and John Laurie too. I found the ending let this down a little - but it is still a gripping hour and half to watch under the expert hand of Alfred Hitchcock.