Continuity mistake: There's an electrical outlet on the wall below the window (aligned with the window shade's loop) in Sid's room near the Megadork poster, but when Sid throws Woody to the floor and raises the shade (before he scorches Woody's forehead with the magnifying glass), that outlet has vanished.
Continuity mistake: When Johnny Cage is fighting Scorpion, and he does his human spear, Johnny runs until he stops at the tree. The spear then catches up, and becomes wrapped around the tree in front of Johnny. When the camera changes view, the spear is just leaning on the tree. The camera changes view again and the spear is wrapped around the tree again. When Scorpion pulls the spear back, it goes straight back, and doesn't unwind around the tree.
Other mistake: In the scene where Robin Williams tells Sarah that she needs a 12 to win, she rolls a 3. The next time she rolls, Robin tells her she needs a 7 to win.
Continuity mistake: As Brian lands the plane down to Bangor, his headset is on in a frontal shot, but in a reverse shot it isn't. (00:47:05)
Continuity mistake: At the beginning, Nix threatens young Dorthea with a real madrill, but that's all we see of it. It's never shown being put away, and it's not there when Swann and his crew break in to incapacitate Nix.
Continuity mistake: The pictures of Sara's parents in the locket switch places throughout the movie.
Continuity mistake: When Omri receives his new skateboard as a birthday present the deck is red with two white stripes. For the rest of the film it is red with blue stripes.
Continuity mistake: In the scene where Kat is being introduced to her new classmates, Casper is seen tying the students' shoelaces together. This includes the snobby blonde sitting in front. But when the camera pans out, her feet are clearly too far apart for this, not like how they showed them while being tied.
Continuity mistake: When they call the sausage company in Omaha, it is busy. When they show the phone in a couple shots later, it has more that one line and shouldn't have been busy.
Continuity mistake: Young Brian plays with his Star Trek figures on the carpet. When Fluke comes in, between shots the position of the other figures on the carpet has changed.
Continuity mistake: In the tournament at the end, the other people on horses that are competing don't even try to knock them off their horses.
Continuity mistake: During the Jacob's Ladder demonstration, the classroom clock remains at 8:10 throughout most of the scene. Then, in several brief flashes, it's 8:15, then 8:10 again, and finally 8:13. (00:32:00)
Continuity mistake: In the scene when Junior cuts the tree with his chainsaw, when he looks up to see how high it is, we can see it has branches. In the next scene when the tree falls on Scoutmaster Flimm, it doesn't have them at all and is cut straight at the top. (00:29:40 - 00:31:00)
Revealing mistake: After Lucifer kills Gabriel, we get close-ups of Lucifer where the outline of his contact lenses are visible.
Continuity mistake: When Mari gets up from the chair to go put the Nutcracker away, she walks towards a china cabinet. You can see by the shapes of the items through the windows in the doors of the cabinet that it is full of various dishes. But when she opens it, it is suddenly full of dolls and doll accessories.
Visible crew/equipment: When Jeremy impales himself on the silver ritual knife, watch as the "knife" bends under the weight of his body - an obvious rubber prop.
Character mistake: Tom states that the Republic of China released fifteen American POWs in 1955. The People's Republic of China (Communist China) might have done so, but the Republic of China (Taiwan) has always been an American ally and would not have been holding any Americans prisoner to begin with.
Continuity mistake: After Jake's head collapses onto the restaurant table and he is dead, the positions of his head and right hand vary with camera angle. His head is angled to his right; his right hand bends inward towards and almost touches his nose. The rear view shows his head higher and tilted to his left. In the left-side view, Jake's head is straight down, resting on his right wrist. Jake's head is tilted to the left again, with his right-hand fingers almost at the edge of the table. (00:54:30)
Revealing mistake: When Annie's boyfriend is killed, she runs over to Candyman and scratches his face open and bees pour out. You can easily see the head is a prop.
Factual error: Calamity Jane was not Pecos Bills love interest. According to legend Pecos Bill was married to Slue Foot Sue another tall tale. Whereas Calamity Jane was an actual historic figure.