Continuity: Willy's beard is inconsistent throughout the movie.
Continuity: When a kid sneezes chocolate ice cream all over Willy's face and Santa beard, the chocolate disappears and reappears between shots.
Continuity: When Willie is in the bath talking to the kid, the cloth he has draped over his face changes pattern and color between shots.
Continuity: Just before Willie wrecks the nativity donkeys in front of all the kids, he is shown collapsed lying down on the escalator with what looks like a broken bottle in his hand. In the next shot when he stands up and walks towards the donkeys the bottle is clearly whole. Then in the next shot it is broken again.
Continuity: Willie's robe falls off and back onto his shoulders repeatedly when the kid is reading the story of Christmas from the advent calendar.
Continuity: When Willie returns to the house with the stuffed elephant and is being chased by the cops, the bags of sand with the candles in them on the sidewalks are no longer present (he had just put them out before going to the mall).
Continuity: When Santa gets shot, the state of the holes and the number of holes are inconsistent.
Continuity: When the kid sneezes on Willie, Marcus's shirt changes from green with a red collar to green with a blue vest/chaps combo.
Continuity: The amount of ice cream on "Deer Hunter 3" kid's ice cream cone increases and decreases before, during and after he sneezes on santa.
Errors in geography: Nowhere in Miami Beach are there hills like the one in front of Willie's apartment. Neither are there palm trees as high as are shown in the movie.
Continuity: Near the beginning of the film when "Santa" is thrown over the bar in Florida, we see two bar stools fall over. In the next shot they are upright again.
Continuity: When Willie and Marcus go to the store and the security guard stops them it is 8:00. When Marcus is climbing through the vent, the clock on the wall says 9:05, and he is supposed to be doing this right after they got in the store. (Although, as always, the clock could be wrong.)
Continuity: When Gin stops the kid stealing a game, he throws the game back to the rack and it slides back into the rack upright. In the next shot, the game is laying on top of the rack instead.
Continuity: In the beginning of the movie, when Willy is drilling the first safe, he has a cut on his right cheek - the same cut he gets towards the end of the movie. After he gets the money out in the beginning, the cut disappears.
Continuity: The glass liquor bottle that Willie throws and hits a car setting off its alarm is obviously plastic in the shot before when he finishes drinking it.
Continuity: After Marcus takes a candy cane from Bob Chipeska's desk, the other candy canes move into a different position on their own.
Continuity: While Marcus takes a candy cane from Bob Chipeska's desk, you can clearly see that there are three. In the next shot, there are four (after he took one). Also, the number of candy canes is inconsistent between shots.
Continuity: The child thief's cap is alternately on his head and in his hands when store-dick throws him out.
Continuity: The kid's snot changes while on Santa's lap for the first time.
Audio/visual unsynchronized: When Santa is playing pinball with the girl he claims is 18, he is heard talking, but his lips are not moving
Continuity: When Willie is selecting the stuffed elephant for Thurman, he turns when he hears the sound of Marcus cocking the revolver he is holding. But when Marcus is talking and waving the gun around, the hammer is still forward and uncocked.
Miscellaneous: Music orchestrator Don Nemitz is credited as Don Nimetz in the end credits
Continuity: When the store manager is talking to Gin about the quickie in the dressing room, the first shot shows Gin's feet on the desk, but the shot immediately following shows him sitting upright in his seat.
Continuity: When Willie is in Bob Chipeska's office, Bob's Christmas motif necktie changes from one style and color to another.
Continuity: Lois' left arm changes positions several times at the food court when Willie is on his lunch break.
Errors made by characters (possibly deliberate errors by the filmmakers): When Bob Chipeska is in the Women's Plus Size dressing room, he overhears Willie saying "You ain't gonna shit right for a week." But when he's talking to Gin, he quotes Willie as saying "for a month."
Continuity: When Gin is reporting Willie's "clean" record to Bob Chipeska, the camera cuts back and forth between them rapidly. In the last cut, Bob's tie is different.
Continuity: When Bob Chipeska and Gin are discussing the "fuck stick" incident, Bob's tie changes when he says "Yeah" near the end of the scene.
Continuity: When Willie is lighting the lights from the popcorn bags outside the house he appears to be lighting from his left to right. However, different shots show that all of the bags continuing down the street are already lit even though he didn't make his way down that far.
Continuity: When Willie is hitting the safe with the slug hammer, it's supposed to be locked and secure. The second time he hits it you can see the door slightly open, but in the next shot it's closed and secure again.
Continuity: During the bar scene where Willy meets the bartender, Sue, her hands constantly change when they say cheers, and then drink the booze.
Audio/visual unsynchronized: When Willie brings the stripper home and listens to his answering machine, the sound of a tape rewinding is heard. However, the machine is clearly a digital model, as revealed by a closeup during Marcus' call, and thus has no tape.
Continuity: When Willie and Thurman run into the kitchen from when the he cut his hand, the faucet is turned on, then is turned off, then following shot shows the faucet is back on without anyone turning it on again.
Continuity: The kid's snot changes between shots when first meeting Willy.
Revealing mistakes: During the scene where Marcus is crawling through the air ducting above the customer service people on their computers; the middle computer monitor has no power cord.
Continuity: When Willie and Marcus are celebrating their first score, Marcus's final drink is still half full after he sips it. However, when he puts down the glass, it's empty.
Continuity: The bottle that Willie throws onto the car's front glass breaks as if it's made of glass when clearly in the previous shot you could tell that the bottle is made of plastic.