I'm just going to put it out there: although this movie has a kid-friendly rating, Grand Guignol is actually pretty scary. When viewers first get a glimpse of him coming out of the closet, all we see is a hand. Unfortunately it only gets scarier from there given his realistic stage makeup and coloured contacts. Parents with kids who are easily spooked might want to fast forward through this scene as it may be frightening for little ones and older kiddos alike.
Additionally, Grand Guignol has a gaggle of various brightly coloured monsters that look like scarier versions of Monsters, Inc. characters thanks to their sharp teeth. While their appearance might not outright frighten children, they make some sudden movements that may scare younger viewers.