Goofs

The tanning-bed employee's hair and outfit change between when Nora and Luther arrive and when Nora is looking for a Band-Aid.

The front of the Kranks' house changes at one point of the movie. Normally, the bay window is on the left side of the house, and the door knob on the front door is on the right side of the door. After Luther has iced his front walkway, when the mailman is walking across his yard, the bay window is on the right side of the house, and the door knob is on the left side of the front door. However, the house number still reads "1482" correctly.

When Luther refuses to buy the Christmas tree from the Boy Scouts, Nora and Luther go in the front door, which has a Christmas wreath on it. The Boy Scout leader complains to a group of neighbors, and they all turn to look at the Kranks' house. When the door is seen from across the street and in a series of closeups, the door has no wreath on it. The wreath reappears and stays there until Luther throws it aside.

The cut on Nora's forehead she received while tanning and the position of her fringe change and disappear between shots.

The woman in green who leads the carolers is shown in the window on another side of the house when she begins singing "Frosty the Snowman". The song continues in real time without interruption, but seconds later and in few words, the woman in green is instantly back on the front lawn and directing the carolers in the exact position on which the previous song ended. There was no time for her to have come back around the house.

The radio that Spike uses to contact the police to have them delay from the airport is an HF radio, used by amateur radio operators, and is not able to transmit (and is not allowed) on the police bands.

The Scouts selling the trees are supposed to be Boy Scouts, as evidenced by the Troop 18 sign and the Camporee reference, but the Scouts selling the trees are wearing Cub Scout uniforms.

While Luther hangs from the rope outside his house, the firefighter behind Vic is hit in the head with the ladder that they're raising.

Accidents happen in real life too.

When the Power Lineman restores power to the Kranks' house, he is shown touching high-power lines wearing only leather gloves. He also "hammers" on the side of the transformer.

He would not have been immediately electrocuted as described because he is insulated.

The Boy Scouts' tree for sale is described as a spruce, yet is clearly some kind of a fir.

Apparently, the Boy Scouts hadn't gotten their tree identification merit badges yet. Misidentifying pine, spruce, and fir trees is easy to do, and many people, including some well-versed gardeners, often get them confused.

Blair mentions that Enrique has never seen a white Christmas, not that he's never seen snow. Since college kids almost always go home during Christmas time, he likely has spent all his Christmases in Peru, not Rhode Island.

Luther sees the advertisement of a Carnival Ship, then books passage on what he refers as the luxury ship Jubilee. The Carnival Jubilee was one of Carnival's smaller "Holiday" class ships that first sailed in 1986. Shortly before this movie was made, the Jubilee was transferred to P & O lines of Australia and became the Pacific Sun. There is no way Luther could have planned to sail on the Jubilee in Christmas 2004.

However, IMDb Guidelines "allow a good deal of leeway" with anachronisms as long as they are "of the period". Viewers are cautioned to remember that "it's entertainment not documentary".

Luther comes out of the tanning bed with a dark tan after only a few minutes. Achieving that kind of tan from a winter-white complexion takes weeks of sessions.

When Nora is chasing the canned ham in the grocery-store parking lot, visible in the background are trees with green leaves, showing that the scene wasn't filmed in December.

When the kids playing the video game get up, they drop the controllers, but the game keeps running as if they are playing.

When Luther returns from picking up the Christmas tree, he pulls it off the roof of his car without unhooking it in any way, revealing that it was not attached to the car, as it would have been since he was driving with it on the roof.

When the carolers come up the walk and slip on the ice that Luther made, the ice visibly flexes when they land, showing that it is a flimsy platform on top of the ground.

They say over the phone with Blaire (when she surprised them that she was coming home)that they met Enrique before and called him "Rick". But then at the end of the movie, they introduce themselves as if they never met him. And they say she went down there for the peace corp. But then Luther says on the phone "oh the one that you went down there to shack up with" and she said "he lived in a separate hut, dad"

Nora, at lunch with Candi and Merry, reveals that the Kranks are avoiding Christmas and that there will be no Christmas Eve party. Candi asks the question "When do you leave?" Nora had not mentioned the cruise.

Luther states that he has spent six weeks planning the cruise when in fact he got the idea the day after Thanksgiving, the day he took Blair to the airport. Though everyone might wish for more time between Thanksgiving and Christmas, there has never been "six weeks" between them.

When the firefighters arrive at the Kranks' to help Luther get untangled from the power cords, they pull a ladder off the fire truck. In the process, the firefighter in the back gets hit in the head with the ladder. The actor portraying the firefighter is clearly surprised by this, but otherwise stays in character and continues the scene.

When Luther writes the letter to his office, he makes the second word in the intro ("colleagues") begin with a lowercase letter. The formal manner is to capitalize each noun in a salutation.

Blair says she's leaving for the jungle of Peru with the Peace Corps. The Peace Corps does not place any volunteers in the jungle regions of Peru but rather just the coastal and highland areas.