Kurt Warner was told to give up on the NFL but he refused to stop believing

American Underdog (2021) tells the true story of Kurt Warner, played by Zachary Levi, an undrafted quarterback who refuses to abandon his dream of playing in the NFL despite years of rejection. From stocking grocery store shelves to fighting for another chance at professional football, Warner faces countless setbacks while trying to support his family. His determination eventually leads to one of the most remarkable underdog stories in NFL history. Is Kurt Warner's journey the greatest underdog story in football?