Terrence Malick, 1978. Magic-hour cinematography by Néstor Almendros. Pre-WWI Texas Panhandle wheat-farm love triangle.
From Wikipedia
Days of Heaven is a 1978 American romantic period drama film written and directed by Terrence Malick, and starring Richard Gere, Brooke Adams, Sam Shepard and Linda Manz. Set in 1916, it tells the story of Bill and Abby, lovers who travel to the Texas Panhandle for work harvesting crops for a wealthy grain farmer. Bill persuades Abby to claim the fortune of the dying farmer by tricking him into a sham marriage.