Night Mail is a 1936 British documentary film directed and produced by Harry Watt and Basil Wright, and produced by the General Post Office (GPO) Film Unit. The 24-minute film documents the nightly postal train operated by the London, Midland and Scottish Railway (LMS) from London to Scotland and the staff who operate it. Narrated by John Grierson and Stuart Legg, the film ends with a "verse commentary" written by W. H. Auden to a score composed by Benjamin Britten. The locomotive featured in the film is LMS Royal Scot Class 6115 Scots Guardsman. Night Mail premiered on 4 February 1936 at the Cambridge Arts Theatre in Cambridge, England in a launch programme for the venue. Its general release gained critical praise and became a classic of its own kind, much imitated by adverts and modern film shorts. Night Mail is widely considered a masterpiece of the British Documentary Film Movement. A sequel was released in 1987, entitled Night Mail 2. Synopsis The film follows the distribution of mail by train in the 1930s, focusing on the so-called Postal Special train, a train dedicated only to carrying the post and with no members of the public. The night train travels on the mainline route from Euston station in London to Glasgow, Scotland, on to Edinburgh and then Aberdeen. External shots include the train itself passing at speed down the tracks, aerial views of the countryside, and interior shots of the sorting van (actually shot in studio). Much of the film highlights the role of postal workers in the delivery of the mail. Development Background In 1933, Stephen Tallents left his position as a secretary and director of the Empire Marketing Board (EMB), a government advertising agency that decided to cease operations, and began work as the first Controller of Public Relations for the General Post Office (GPO). In the wake of the EMB's demise, Tallents secured the transfer of the EMB Film Unit to the control of the GPO, with EMB employee John Grierson transitioning from head of the EMB Film Unit to head of the newly formed GPO Film Unit, bringing most of its film staff with him. By 1936 the GPO was the nation's largest employer with 250,000 staff and Tallents had begun to improve its public image, making the GPO spending more money on publicity than any other government entity at the time with a significant portion