Which film is about Quakers trying to be pacifists while living during the American Civil War?

The 1956 film which is about Quakers trying to be pacifists while living during the American Civil War is titled "Friendly Persuasion". This film is an American Civil War drama starring Gary Cooper, Dorothy McGuire, Anthony Perkins, Richard Eyer, Robert Middleton, and Phyllis Love. "Friendly Persuasion" was directed and produced by William Wyler. Robert Wyler, the older brother of William Wyler and a nephew of Carl Laemmle, Universal Studios President, helped as a producer.

The screenplay was adapted by Michael Wilson from the 1945 novel 'The Friendly Persuasion' by Jessamyn West. This film intelligently tells the story of a Quaker family (Birdwells) in southern Indiana during the American Civil War and the complete way the war tests their pacifist beliefs.

The patriarch of a peace-loving Quaker family, Jess Birdwell (Gary Cooper), begins to question his pacifist values when the Civil War moves toward his close-knit Indiana community. Meanwhile, Jess's daughter, Mattie (Phyllis Love), is in love with a soldier, and her brother, Josh (Anthony Perkins), contemplates picking up arms to defend his home. He doesn't want to be seen as a coward. As Confederate forces draw nearer, the Birdwells will make some difficult, life-altering decisions.

The film was a good success; it only received some mild criticism for certain inaccurate portrayals of Quaker views. After 4 years, it made $8 million US dollars at the box office from international sales.