“Johnny Cash: American Rebel” is a documentary centered on 12 pivotal songs by Johnny Cash, covering a span of four decades. These tracks, such as “Folsom Prison Blues,” “Jackson,” “San Quentin,” “Man in Black,” “Sunday Morning Coming Down,” “Ring of Fire,” and “Hurt,” encapsulate his fervor, musical talent, and his messages against war, injustice, racism, and prejudice. Each song represents a chapter in Cash’s life and reflects the evolving landscape of America from the 1950s to the present. The film weaves together interviews, archival concert footage, photographs, and personal items from the Cash family to tell this story.