Revealing mistake: Ron leans against a barrel and sets in motion a series of events leading to an explosion. For being able to tip it with such a modest push, it is obvious it was empty (confirmed also by how it bounces). (00:02:20)
Kim Possible (2019)
1 revealing mistake
Directed by: Adam B. Stein, Zach Lipovsky
Starring: Sadie Stanley, Sean Giambrone, Ciara Riley Wilson, Todd Stashwick
Other mistake: In the fight at the beginning of the movie, Kim bends over and launches her jet-pack towards the villains. Almost everyone falls down way before the jet comes anywhere near and/or receive no impact, but they are KO as if they took a rocket to the gut. (00:01:40)
Trivia: When Kim throws a henchman over the railings onto Professor Dementor, the henchman lets out a Wilhelm scream.