In an alternate timeline accidentally created by Leonard McCoy saving Edith Keeler's life in 1930, McCoy and his close friend Lynn Dickinson saw the film in the cinema in South Carolina in 1948 as Lynn had always admired Garson and Colman's acting work. Although McCoy feared that the film's storyline would upset Lynn due to the fact that her husband Phil Dickinson had been killed in battle in Ireland in May 1946, Lynn enjoyed the film. While she did cry on several occasions during the film, she told McCoy that this was due to the acting and the story rather than her memories of her late husband. (TOS - Crucible novel: Provenance of Shadows)
As the First World War ends a soldier wanders out of an asylum. "Smithy" was found in the trenches having lost his memory and all contact with the past. Amidst the noise of the armistice celebrations he meets a music hall actress. They fall in love, marry, move to a country cottage, and have a son. On a trip alone to Liverpool, "Smithy" is involved in an accident. His original memory returns, but he now remembers nothing at all about his new life.