The Nightmare Before Christmas goofs

(at around 15 minutes) Jack doesn't recognise snowflakes ('What's this? There are white things in the air.'), but he does know what snowballs are ('The children are throwing snowballs instead of throwing heads.').

(at about the 40-minute mark) Jack emphasises to Lock, Shock and Barrel that their mission to abduct Father Christmas is strictly confidential and must remain unknown to anyone. However, when they first return (having mistakenly brought the Easter Bunny), Behemoth is present, but Jack isn't concerned about him.

After Jack instructs Lock, Shock, and Barrel to kidnap Father Christmas, they set off straightaway and, by the following scene, are back with the wrong captive (the Easter Bunny). Jack then redirects them and the trio begin their "mission" anew. Strangely, it subsequently takes an inexplicably long time for them to return — in fact, more than 30 days elapse. Considering they managed to seize the real Father Christmas in a matter of seconds and had earlier caught the Easter Bunny so quickly, it doesn't make sense that their return should have taken so long.

(at around 44 mins) Santa Claus first readies the presents and his sleigh, and only afterwards checks which children have been good or naughty. It would be more sensible to verify the children's behaviour first, unless he meant to hand out presents at random.

At around 17 minutes, just before the three Mr Hydes join Jack's search party to report that he had just searched the pumpkin patch, one of their feet is already visible in the shot, poised to step into view.

(at around 21 minutes) When Jack's telling the townsfolk about Christmas Town, several of them shift positions. The Clown with the Tear-Away Face is in the front row at the start, later appears in the second row, then returns to the front row but on the opposite side; the man with snake-like fingers moves from the front row to the second and then back again; the werewolf swaps places with the devil.

(at around 29 minutes) As Sally raises the basket up to Jack's window, Jack is writing on a blackboard. When he stops writing, the piece of chalk he is holding vanishes.

(at about the 19-minute mark) Sally's trick spoon — which originally has holes — appears intact in the subsequent shot after she dips it into Dr Finkelstein's soup.

(around the 36-minute mark) In the song "Kidnap Mr Sandy Claws", Shock is shown wearing black gloves that intermittently disappear and reappear.

(at around 21 minutes) When the residents of Halloween Town assemble for the town meeting, the megaphone on the roof of the Mayor's car shifts position during the scene.

(at around the 30-minute mark) After Sally hoists the basket up to Jack and he uncorks the bottle, the basket is visible on the windowsill. However, when he leans out of the window to thank Sally, the basket has disappeared.

(at about 1 hr 9 min) Towards the end, when Jack places a child on the Mayor's hat, he does so from the left, with both his arms on the left-hand side of the hat. In the subsequent shot, he is holding the child with his arms positioned on both sides of the hat.

At about the 13-minute mark, when Jack opens the Christmas door his right hand rests on the third bough up from the base of the tree. In the reverse shot, however, his right hand is placed on the tree’s lowest bough.

In certain shots, the Man Under the Stairs has discernible nipples on his chest; in others, they are absent.

(at around 1 hour 10 minutes) In the finale, as Sally plucks the petals from the withered flower atop the spiral hill, the petals vanish when she lets them fall.

(at around 17 minutes) When Jack trips and falls after running into the Christmas Town signpost, there's a hole in the snow for his umbrella. However, he wasn't carrying it while coming up the hill, as he left it hanging immediately after the line "the smell of cakes and pies are absolutely everywhere".

(at around ten minutes) When Sally returns to Dr Finkelstein's home to reclaim her arm, the doctor enters carrying a lamp that seemingly "lights up" the doorway he has just come through. However, as Sally begins to climb the ramp and Dr Finkelstein follows, it becomes clear the light is not coming from the lamp itself; it has been positioned behind the wall of the ramp. This is shown when the light casts shadows of both Dr Finkelstein and Sally in a direction that would be impossible if the lamp were the source, since the illumination is supposed to originate from that same direction.

(at about 41 minutes) During the song "Making Christmas", some of the characters are building a ramp on which the Mayor rides the snowmobile which Jack had brought. After the small, hairy Cyclops slots his piece of the ramp into place, the 'Clown with the Tear-away Face' does the same with another section, and the Cyclops disappears at that point. He pops up again on the other side of the screen at the end of the shot.

(at around 59 minutes) As the cannons are being hoisted to fire upon Santa Jack, searchlights are visible in the background. When the guns begin firing, the searchlights snap to new positions and cease their sweeping motion.

(at approximately 13 minutes) While Jack examines the holiday doors, the Easter door appears to the right of the Thanksgiving door. Later, as he approaches the Christmas door, it is now positioned to the right of the Thanksgiving door and the turkey is facing the opposite direction (the earlier shot was likely flipped).

In the Mayor of Halloween's car, the steering wheel appears on different sides.

(at around the 22-minute mark) In the town hall both witches are circling Jack as he sings about the present. When the Clown snatches it from him, the larger witch is suddenly seated among the audience.

(at about 39 minutes) When Jack outlines his plan to Sally for the Father Christmas costume, an overlay displays a snowy backdrop. Moments later, when the plan is shown in profile, the backdrop has disappeared and there are written notes around the costume pattern.

Near the centre of the scene, two red dice are tossed and come to rest, showing "snake eyes" (each has a single pip facing upward). The die on the right, however, also shows a six on its side — but on a standard die opposite faces total seven, so the six should be on the underside.

If the moon is full on Halloween, it would be waxing by Christmas Eve rather than being full again.

There are 59 days between full moons, and 55 days separate Halloween and Christmas Day. That small gap means the moon could appear almost full on both dates, especially in an animated fantasy film. [Note: IMDb guidelines state that "big allowances" are made for artistic licence and the suspension of disbelief.]

(around 1 hour 5 minutes in) When Jack returns to Halloween Town intent on setting things right, his aim is to get Santa back to Christmas Town. Yet he goes straight to Oogie Boogie's hideout, even though there is no way he could have known Santa was there — Lock, Shock, and Barrel hadn't told Jack where they would take Santa, and at that point Jack had no reason to suspect Oogie was involved.

(at around 21 minutes) When the Mayor switches on the reflector light during the town meeting, several bats, startled by the sudden illumination, take flight from it. The wires from which they are suspended are visible.

During Jack's visit to Christmas Town he briefly leaps from one house to another, and for several frames the wires supporting the puppet are visible.

(at around the six-minute mark) When Jack tosses a coin to the street musicians, the wire holding the coin in place is visible for a few frames.

(at around 14 minutes) After he discovers Christmas Town, Jack inadvertently tumbles down a hillside. The town's lights appear superimposed over his body, even though they ought to be situated well away in the background.

(at around 14 minutes) As Jack kneels in the snow after entering Christmas Town, a small piece of black debris can be seen for roughly a second beside his knee.

At roughly the 50-minute mark, during Oogie Boogie's song, when he reaches the line "Would someone shut this fella' up?", the camera gives a noticeable jolt as objects in the background shift slightly.

(at around three minutes in) During the Halloween song, the threads used to suspend the bats that fly out from the moon are visible against the moonlight.

(at about 38 minutes in) Wires can be seen supporting the scorpions as they leap onto Barrel's head.

(at about 36 minutes) In the sequence of the song "Kidnap the Sandy Claws", after Shock dispatches a cage containing an insect to Oogie Boogie, the wires supporting the cage are visible as it bounces on arrival. When Lock places Barrel onto a catapult, the metal "skeleton" of Barrel can be seen moving around the puppet's feet. Finally, as Barrel rises (while Shock shows them a black box), a fragment of debris beside him briefly appears and then vanishes.

(at roughly 18 minutes) When Sally becomes light-headed from the stew's fumes, the vapour rising from the pot briefly appears in front of her, even though it's meant to be behind her.

(at around 45 minutes) Towards the end of the "Making Christmas" song, as the child tosses the final present into Jack's sleigh, the stationary shadow at the bottom of the screen changes shape from one frame to the next.

(at approximately 11 minutes) When the Mayor welcomes the musicians outside Jack's house, the top-right area of the background brightens as a shadow abruptly disappears.

(at around 44 mins) When Dr. Finkelstein is assembling the skeletal reindeer and uncovers the skull, the skull isn't actually close to him — as shown by the shadows on the rear wall, the skull casts no shadow. It abruptly materialises as the camera descends and the skull's shadow is revealed.

(around the 33-minute mark) As Sally ducks behind a well to hide from Dr. Finklestein (during Jack's assigning of tasks), one of the well's capstones tilts down slightly in a smooth motion over at least a few dozen frames of this stop-action film.