GPO Film Unit

Rainbow Dance is a 1936 British animated film released by the GPO Film Unit. This is Lye's second film. It uses the Gasparcolor process.

“Catching up with gossip, inspecting new ducklings, clambering over gates, walking across meadows - the life of a postman appears idyllic, but this Devon postie has some startling ideas about improving efficiency... The inimitable Richard Massingham, a doctor turned actor and filmmaker, co-directed this film, and appears in it as the testy Mr Proctor. This film was produced by John Grierson, often hailed as the father of British documentary. It was made for the General Post Office (GPO) Film Unit, one of the most remarkable creative institutions that Britain has produced. It provided a springboard for many of the best-known and critically acclaimed figures in the British Documentary Movement.” - BFI

A brisk GPO Film Unit promo for the Post Office Savings Bank: pub talk and daydream vignettes tout penny-by-penny thrift, peaking in a playful Norman McLaren passage where household furniture springs to life—selling the idea that “many a little makes a lot.”

This documentary short examines the special train on which mail is sorted, dropped and collected on the run, and delivered in Scotland on the overnight run from Euston, London to Glasgow.

Trade Tattoo went even further than Rainbow Dance in its manipulation of the Gasparcolor process. The original black and white footage consisted of outtakes from GPO Film Unit documentaries such as Night Mail. Lye transformed this footage in what has been described as the most intricate job of film printing and color grading ever attempted. Animated words and patterns combine with the live-action footage to create images as complex and multi-layered as a Cubist painting. Music was provided by the Cuban Lecuona Band. With its dynamic rhythms, the film seeks (in Lye’s words) to convey “a romanticism about the work of the everyday in all walks of life."

A tribute to the courage and resiliency of Britons during the darkest days of the London Blitz.

The organisation of medical services in Britain during the Second World War.

Documentary following an Edinburgh fishing trawler, the "Isabella Grieg".

Short documentary showing the workings of a large London sorting office.

How news of a general reduction in GPO charges was finally brought to parliament and the people, despite attempts by the country's enemies to prevent the announcement...

Humphrey Jennings' first film as a director, a brief overview of the British postal service.

Experimental GPO publicity film extolling the virtues of the telegram service.

Shot in mid-1939 as S.S. Ionian (also shown as Her Last Trip), Humphrey Jennings’s GPO short follows the Royal Mail steamer on a last peacetime run through the Mediterranean—Gibraltar, Malta, Alexandria, Haifa—under the gaze of the Mediterranean Fleet (HMS Barham, Malaya, Warspite). After the Ionian was sunk by a German mine on 29 November 1939 en route from Crete to Hull, the film was recut and released as Cargoes.

1935 documentary about the hard working life of Welsh coal miners.

Wartime morale-boosting propaganda short, looking at the greatness of Britain and the efforts of all to preserve her power and integrity.

Animated short from Halas and Batchelor encouraging the British public to post early for Christmas.

Sponsored by the Ministry of Information and shown as part of cinema programmes throughout the Second World War, this short film takes place halfway through the Battle of Britain and at the beginning of the Blitz, during sustained bombing raids on UK cities.

A behind-the-scenes GPO Film Unit documentary (directed by Stuart Legg) that races from studio rehearsals and newsrooms to control rooms and transmitters, weaving speeches, music, and outside broadcasts—featuring voices like H. G. Wells and Ramsay MacDonald—into a kinetic portrait of how the BBC’s national “voice” is made.

Humphrey Jennings’s wartime short rallies Britain’s countryside, showing fields ploughed up from fallow, seed sown, and crops raised on once-idle land as part of the national push to feed the home front—an urgent, lyrical call to turn soil into sustenance.

A brief documentary about the history of the Royal Mail.