Other mistake: Willowdean is disqualified for not having her talent costume approved - but the girl who gets 2nd runner-up [Millie) is also wearing a different costume than the one she had approved, and she is not disqualified.
Dumplin' (2018)
1 other mistake
Directed by: Anne Fletcher
Starring: Jennifer Aniston, Odeya Rush, Bex Taylor-Klaus, Dove Cameron
Continuity mistake: At the beginning of the movie, with Dolly Parton playing on the car radio, we see the nose of the car driven by Aunt pass by a red Kia with a bunch of girls doing their exercises running on the sidewalk. A few seconds later though, from the passenger window we see they are passing by the same car and same girls while the song is playing and they sing along to it.
Trivia: Julie Murphy, author of the the book "Dumplin'", makes a cameo as one of the cheering patrons at the drag bar in the last scene.