And he filmed he final fatal confrontation and shoot-out sequence in the sweltering heat of Death Valley under the very harshest conditions.[Note: During filming, Chaplin was in the midst of a difficult divorce from his first wife, teenaged bride Mildred Harris, a 17 year-old whom the 29 year-old Chaplin married in 1918.However, MacDonald (a descendant of slaves himself) appealed to Caesar to show mercy: "This is not how it was to be." She was planning on setting up a series of large reflective ancient mirrors along a crevice, explaining to Rick: "It""s an ancient Egyptian trick.