Forever and a Day is a 1943 American drama film, a collaborative effort employing seven directors/producers and 22 writers, with a large cast of well-known stars.

In World War II, American Gates Trimble Pomfret is in London during the Blitz to sell the ancestral family house.

W. P. Lipscomb – who was paid $10,000 – wrote this screenplay, reportedly drawing on the brainstorming sessions of a committee of writers musing on a scenario proposed by Robert Stevenson.

To accommodate a large cast of British-born stars Forever and a Day had an extended timespan of 136 years (1804-1940), and was filmed – with minimal advance publicity – in May–December 1941.

The film was then dormant for several months due to scheduling issues with its projected stars: Ronald Colman and Greer Garson had offered to appear in the film but they were disallowed by MGM from playing the focal couple of the third episode, that studio feeling it would lessen the impact of the upcoming Colman/Garson star vehicle Random Harvest.