Everybody loves an underdog.

Except, well, Yankees fans, Cowboys fans, Alabama and Clemson fans, Dookies.

This Christmas, a pretty good cast that includes Oscar winner Anna Paquin and Dennis Quaid, with Zachary Levi in the title role, will bring “American Underdog,” the story of Kurt Warner’s late life football stardom, to the screen.

It’s the sort of story the NFL loves, like “Invincible.” Not like Concussion Gate or Colin Kaepernick.

Will fans out down the remote, stop updating their fantasy league and check it out?