Character mistake: Zack's birthday cake appears to have his name misspelled as "Zach." (00:29:24)
American Underdog (2021)
1 character mistake
Directed by: Andrew Erwin, Jon Erwin
Starring: Anna Paquin, Zachary Levi, Hayden Zaller
Other mistake: After seeing Joe Montana play in Super Bowl XIX, young Kurt said, "I knew I wanted to be that guy." When he goes outside to pass the football, young Kurt has "Warner 13" on the back of his jersey - not Montana's #16 but the #13 that he could not know in advance that he would eventually wear during most of his adult career. (Jersey numbers are not necessarily that available for a player to have his pick). (00:02:02 - 00:02:33)
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Suggested correction: This is trivia at best, certainly not a mistake. While it's true he wore #12 in high school, there's no reason he couldn't have liked #13 as a child. And, many key position players do get to pick their number, from the available range, which Kurt certainly did.
Kurt Warner: Do what you can do, till you can do what you want to do?
Trivia: Throughout the movie, Kurt Warner wore jersey #13, but he is also known as jersey #10 for the St. Louis Rams in the 1999 play-offs.