The true story of Kurt Warner: from grocery store to NFL MVP

American Underdog (2021) tells the remarkable true story of Kurt Warner, played by Zachary Levi, who went from stocking grocery store shelves to becoming one of the NFL's most unlikely success stories. After years of rejection and setbacks, Warner finally earned his opportunity with the St. Louis Rams. His journey eventually led to two NFL MVP awards, a Super Bowl championship, and a place in the Pro Football Hall of Fame. It's a reminder of just how far persistence can take someone. Is Kurt Warner's journey the greatest underdog story in NFL history?