It's a classic silent film, directed by D. W. Griffith in 1915. This is probably the first film constructed with the classic hollywood narrative style, that is attributed to Griffith. "Two brothers, Phil and Ted Stoneman, visit their friends in Piedmont, South Carolina: the family Cameron. This friendship is affected by the Civil War, as the Stonemans and the Camerons must join up opposite armies. The consequences of the War in their lives are shown in connection to major historical events, like the development of the Civil War itself, Lincoln's assassination, and the birth of the Ku Klux Klan." Just ignore stupid history in the end and enjoy the film edition.