When Kurt Warner and Zachary Levi get together to promote their upcoming movie American Underdog, the first thing that comes across is how well they get along. We had a great chat about the movie's many fatherhood themes, the complicated relationships with their own fathers, and the unexpected joy Kurt felt showing his kids what his life was like before they came along.

Importantly, you can enjoy American Underdog without knowing a thing about football. There are enough messages of love, perseverance, and family to rename it “American Dad Blog.”

American Underdog opens Christmas Day.