It's A Wonderful Life

From Wikipedia:

It's a Wonderful Life is a 1946 American film produced and directed by Frank Capra and based on the short story, "The Greatest Gift" written by Philip Van Doren Stern.

The film takes place in the fictional town of Bedford Falls shortly after World War II and stars James Stewart as George Bailey, a man whose attempted suicide on Christmas Eve gains the attention of his guardian angel, Clarence Odbody (Henry Travers) who is sent to help him in his hour of need. Most of the film is told through flashbacks spanning George's entire life and narrated by Franklin and Joseph, unseen Angels who are preparing Clarence for his mission to save George. Through these flashbacks we see all the people whose lives have been touched by George and the difference he has made to the community in which he lives.

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