Continuity mistake: Marie comes over with a cake shaped like a cross. In almost all the scenes where the family is sitting at the table different pieces of cake are missing. In some of the camera angles there are no pieces of cake cut from the bottom yet when the cake is seen from other angles there are.
Continuity mistake: At the beginning of the scene where the three Barone kids are singing along to the Hackidu song with Robert on the couch, the scene opens with a picture of the house from the outside, and it is light and not raining at all. Then, when Ray comes in minutes later, it is suddenly dark and pouring rain.