Readiness: The American Underdog Trailer Teases Christmas Day debuts. The true story of Kurt Warner, who went from a stockboy to a two-time NFL MVP, Superbowl champion and Hall of Fame quarterback, reads the official synopsis. Warners unique story, a century of challenges and a setbacks that could have disgruntled his desire to become an NFL player, but only when his dreams seemed impossible to reach, it is only with the help of his wife, Brenda and his family that he perseveres and finds the strength to prove that he’s already inside the world. American Underdog is an inspirational story that demonstrates all is possible in the pursuit of faith, family, and determination. Check the special American Underdog video below. American Underdogs are based on interviews with Warner and his memoir, All Things Possible: My Story of Faith, Football and the First Miracle Season. The film stars Anna Paquin, Dennis Quaid, Cindy Hogan, SerDarius Blain, Adam Baldwin, Bruce McGill, Danny Vinson, Chance Kelly, Hayden Zaller, Cora Kate Wilkerson and Nic Harris. OBJECTIVE: The American Underdog (shit). Zachary Levi is Kurt Warner in biopics. The American Underdogis directed by The Erwin Brothers come from a screenplay written by Jon Erwin, David Aaron Cohen and Jon Gunn. Kurt and Brenda Warner are executive producing as well as Tony Young, Jon Gunn and Sean Devereaux. Producers are Kevin Downes, Jon Erwin, Andrew Erwin, Mark Ciardi and Daryl Lefever.