Continuity mistake: When Nora is explaining to her friends at lunch that she and Luther are skipping Christmas, her friend asks her "When do you leave?" without Nora ever mentioning that she and Luther were going on a cruise.
Continuity mistake: In the scene when Luther sprays the sidewalk with water, the bay window on the left side, when they show the mailman slip, the bay window is on the right side, then when Nora slips, soon after, the bay window is back to the left side.
Continuity mistake: When the scouts are trying to sell a Christmas tree to Luther and Nora, there is a wreath on the front door. They can't make the sale and go to their truck parked across the street. They tell some neighbors that the Kranks would not buy a tree. As they all look across the street at the house, the wreath has vanished. When Luther leaves for work the next morning, the wreath has returned.
Continuity mistake: The attendant at the tanning salon has a different shirt, earrings, and hairdo in the scene where Nora tans for the first time then comes out with the cut on her head.
Continuity mistake: When the police are driving Blair and her boyfriend, it is snowing. In the shot from inside the police car the windshield wipers are on . The very next shot shows the police car driving down the street and the windshield is clear and the wipers are off.
Continuity mistake: When Nora is driving down the road with Fromeyer at her window, he sticks his hands on the glass. Nora raises the window "catching his fingers". When looking through the windshield, you can see that the window is 3/4 of the way up, but when it cuts to the outside, it is just under the edge.
Continuity mistake: When the daughter's boyfriend first enters the house to meet Tim Allen and Jamie Lee Curtis, his hair is covered in snow. Shortly after, the snow is gone but then reappears in another shot during the same scene.
Continuity mistake: When the carolers are outside singing, Luther and Nora are inside hiding. When they cut to Nora, you can see out of the window- there's nothing there. When she leans back up from getting her yarn, the head caroler is there with some others behind her. In the next shot, they are back in place in the choir. Even if they were right outside the window in the first place, there is no way they could reposition themselves that fast.
Continuity mistake: When Marty and Enrique are talking, Blair turns to ask her parents who he is. Nora has a plate with food on one hand and a fork in the other. However, when they respond, her left hand is behind Luther and the right one has no fork.
Continuity mistake: Mr. Krank's coat was totally drenched by a car going through a puddle and it was completely wet. Subsequently, in the same scene, the coat was only partially wet, having quite a bit of dry area.
Continuity mistake: In the scene when Luther is talking to the neighbour to borrow his Christmas tree, the neighbour is packing his car and when he puts the sleeping bag in back of truck, the white cooler falls over. By the end of the scene, it is fixed without being touched.
Continuity mistake: Just after treading on the neighbours' cat he is talking to them and the woman power walking seems to be going nowhere, as she is in the same spot twice.
Continuity mistake: The Christmas wreath on the front door of the Kranks' house appears and disappears throughout the movie, independently of Tim Allen removing and replacing it as part of the plot. In most shots from across the street the wreath is missing. On closeups that include the front door in the shot, the wreath is present.
Continuity mistake: Mr. Krank is wearing a black overcoat going to give away the cruise trip. After the burglar falls off the roof his coat is tan.
Suggested correction: That's not what happened. Mr. Krank is wearing a tan coat to start with, you see him wearing it when he's in the house. When he goes outside, he puts on a black overcoat over his tan coat (which you can even see). When he's coming back, he finds Ned has been stuck on the roof and after helping him get down, he has given Ned his black overcoat, which you see Ned wearing. So Mr. Krank is back to wearing just the tan coat.
Continuity mistake: When Luther and the Frosty statue fall off the roof, it shows Frosty break into at least 15 different pieces. Then it shows a pile of pieces of him a few seconds later. Yet a few more moments later, it shows Frosty completely fine in one piece as the neighbors pull him back onto the roof with a rope.
Suggested correction: Fromyer sends one of the neighbors to get another person's Frosty when they are making arrangements to get ready for Blair's coming home.
