The Legends of the fall

Legends of the Fall is a 1994 American epic Western film directed by Edward Zwick and starring Brad Pitt, Anthony Hopkins, Aidan Quinn, Julia Ormond and Henry Thomas. Based on the 1979 novella of the same title by Jim Harrison, the film is about three brothers and their father living in the wilderness and plains of Montana in the early 20th century and how their lives are affected by nature. Sick of betrayals the United States government perpetrated on Native Americans, Colonel William Ludlow leaves the Army, moving to a remote part of Montana. Along with One Stab, a Cree friend, he builds a ranch and raises his family. Accompanying them are hired hand and former outlaw Decker, Decker's Cree wife Pet, and daughter Isabel Two. William has three sons: Alfred, the eldest; Tristan, the middle son; and Samuel, the youngest.
William's wife Isabel does not adapt to the harsh Montana winters and moves to the East Coast; Tristan vows never to speak of her. At age 12, Tristan touches a sleeping grizzly bear. The bear awakens and injures him, but he cuts off a claw.
Years later, Samuel returns from Harvard University with his fiancée, Susannah. Susannah finds Tristan captivating but loves Samuel. Before they can marry, Samuel announces his intention to join the Canadian Expeditionary Force and aid Britain in the fight against Germany. Much to their father's displeasure, Alfred also joins. Although Tristan does not want to join, he does so after swearing to Susannah to protect Samuel.
The brothers find themselves in the 10th Battalion, CEF. Alfred, commissioned as an officer, leads a charge into no man's land. The attack results in heavy casualties and Alfred is wounded. While visiting Alfred in the field hospital, Tristan learns that Samuel volunteered for a dangerous reconnaissance mission. He rushes off to protect his brother but arrives too late. Tristan holds Samuel until he dies, then cuts out his brother's heart and sends it home to be buried at the ranch. Tristan single-handedly raids the German lines and returns to camp with the scalps of German soldiers hanging around his neck, horrifying his fellow soldiers. He is discharged but does not go home. Alfred returns to Montana and proposes to Susannah, but she declines.
Tristan returns home, where Susannah finds him weeping over Samuel's grave. She comforts him and they become lovers. A jealous Alfred confronts Tristan before leaving to make his name in Helena. Tristan is plagued with guilt over Samuel's death and feels responsible for driving Alfred away; he leaves Montana for several years. Susannah waits for him, but receives a letter telling her to marry someone else. Alfred comforts Susannah, and William finds them together, which leads to a falling out between him and Alfred. William later suffers a stroke. He does not speak for years and the ranch deteriorates. Susannah marries Alfred, now a congressman. Alfred's business and politics cause him to get involved with the O'Banion brothers, Irish bootleggers and gangsters.