Not Rated | | Crime, Mystery, Thriller
A man in London tries to help a counter-espionage Agent. But when the Agent is killed, and the man stands accused, he must go on the run to save himself and stop a spy ring which is trying to steal top secret information.
Before filming the scene where Hannay (Robert Donat) and Pamela (Madeleine Carroll) run through the countryside, Alfred Hitchcock handcuffed them together and pretended for several hours to have lost the key in order to put them in the right frame of mind for such a situation.
Music hall announcer: Ladies and Gentleman, with your kind attention, and permission, I have the honor of presenting to you one of the most remarkable men in the world.
Heckler in Audience: How remarkable? He's sweating!
The sideways shots into the car that Richard and Pamela are travelling in with the detectives uses the same view across a loch, even though the following shots show they are nowhere near water.