Revealing mistake: When Sly breaks the board you can tell it was already broken.
Revealing mistake: When the kid does aerobatics, her uniform is white, and it is an adult pretending. (01:20:25)
Baby Geniuses (1999)
2 revealing mistakes
Directed by: Bob Clark
Starring: Christopher Lloyd, Dom DeLuise, Kathleen Turner, Kim Cattrall, Peter MacNicol
Revealing mistake: When Sly breaks the board you can tell it was already broken.