When Gigi drops her knife to cut off unnoticed a slice of the Sint his cloak, everyone has a pizza on their plates. When she gets up, and finds the knife, everyone has eaten the pizza by now. The so-called search under the table would take too long.
Right before Gigi demolishes the first version of her robotic Saint Nicholas or 'robot-Sint' by pushing it away, you can see a little bit of the shoulder of the guy wearing the robot-Sint suit.
Early in this film a paperboy is attacked by Gigi's two dogs. For no apparent reason the dogs are absent when Tim enters Gigi's domain.