In 1933, the General Post Office made history by founding its own film production unit.  This is a selection of some of its greatest short films, including the famous  "Night Mail" poem by W H Auden

N or NW (Dir: Len Lye, 1938); Love on the Wing (Dir: Norman McLaren, 1939); The Fairy of the Phone (Dir: William Coldstream, 1936); The Horsey Mail (Dir: Pat Jackson, 1938); Trade Tattoo (Dir: Len Lye, 1937); A Midsummer Day’s Work (No director credited, 1939); The Tocher (Dir: Lotte Reiniger, 1938); Night Mail (Dir: Harry Watt, Basil Wright, 1936)