Directed by Andrew and Jon Erwin, the film follows Warner's journey as an undrafted player who ascended to winning Super Bowl XXXIV.

[1] It stars Zachary Levi as Warner, alongside Anna Paquin as his wife Brenda and Dennis Quaid as his head coach Dick Vermeil.

Allen threatens to bench him after repeatedly not heeding his coaching, which would effectively end Warner's NFL dream.

After a brutal practice following the coach's orders, Kurt continues to be the starter and his numbers climb to where he could have a chance at the Draft.

Brenda's parents sell the house and move to another state, putting them in a tough situation, and the couple continue to struggle.

Kurt gets approached by Jim Foster, who offers him the quarterback position for the Arena Football League's Iowa Barnstormers.

They marry and Kurt finishes the 1996 Arena Football League season with the Iowa Barnstormers in ArenaBowl X, a heartbreaking loss when his completed pass on the last play of the game comes up one yard short of the end zone.

When starting quarterback Trent Green goes down with an injury in the 1999 NFL preseason, Kurt eventually takes his place.

In his first game, Kurt and the Rams face a strong Baltimore Ravens defense led by linebacker Ray Lewis.

The Rams post a 13–3 record that season, becoming known as The Greatest Show on Turf due to the high-powered, Warner-led offense.

During the game, Kurt breaks Joe Montana's record for throwing the most passing yards in a Super Bowl.

He becomes enshrined in the Pro Football Hall of Fame in 2017, and he and Brenda continue to live happily married, with seven children.

The website's consensus reads: "American Underdog sticks to the standard inspirational sports drama playbook—and proves once again that it can be very effective in the right hands.