Visible crew/equipment: When the Elves fly off the roof with Charlie, a wire aiding in their takeoff is visible under one of them.
Visible crew/equipment: Near the beginning right when we see Charlie in the back of the car, the camera shadow creeps onto the vehicle as its moving.
Chosen answer: Even though Charlie did not want to stay with his Dad for Christmas Eve, he did want to stay at home with a family member, fragmented as it was. Eating Christmas Eve dinner at a Denny's restaurant was not his idea of a Christmas dinner at home with family.