EXCLUSIVE: Golden Globe nominee Dennis Quaid and Oscar-nominated actress Virginia Madsen have signed on for the Jon Erwin and Andrew Erwin-directed sports drama, American Underdog: The Kurt Warner Story, along with Ser’Darius Blain, Adam Baldwin, Bruce McGill, Danny Vinson, Chance Kelly, and Hayden Zaller. The new additions join Zachary Levi in the role of Kurt Warner and Anna Paquin as Brenda Warner.