A Matter of Life and Death (1946) is a romantic fantasy film set in World War II by the British writer-director-producer team of Michael Powell and Emeric Pressburger. It was originally released in U.S. under the title Stairway to Heaven, which derived from the film’s most prominent special effect: a broad escalator linking the Other World and Earth. Reversing the effect in The Wizard of Oz, the supernatural scenes are in black-and-white, while the ones on Earth are in Technicolor.
In 2004, A Matter of Life and Death was named the second greatest British film ever made by the magazine Total Film in a poll of 25 film critics, behind only Get Carter.
If you want to get a flavour of this film it can be found here.