Continuity mistake: Jennifer Aniston is backstage at one of the beauty pageant contests she is a special guest for. They hand her the envelope with the winner. She is fixing her hair with the left hand, which turns into the right hand in the reverse shot.
Continuity mistake: As the young Willowdean puts on the table the Dolly scrapbook for the party before the doorbell rings, in the closeup she's running her left hand along it with the pinky and ring finger off the side, while in the previous and following shot she has her hand fully pressed to the cover.
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.