Continuity mistake: In the lunchroom when the boy gets tripped, a bunch of the food flies out of the bowl in the slow motion shot. When the bowl lands on Steve Guttenberg's head, it's full of food.
Factual error: In the opening scene with Doug Masters flying in Russian airspace, he is to be escorted back to American airspace by MiG-23s. But in fact the two planes that show up are F-4 Phantoms. When the "MiG" fires a missile, you see a completely different plane. Best I can tell, that is not a MiG either.
Continuity mistake: When Deja and Malik are at the track talking and stretching, Deja is lying down in one shot then sitting up in the very next.
Factual error: In the movie, it is depicted that Verlaine shoots Rimbaud in the palm; in reality Verlaine shot Rimbaud in the wrist.
Continuity mistake: When the toy castle is unveiled, the drawbridge is facing towards the Christmas tree, and is the same way in pretty much all the shots it is shown. But when Fritz scoffs and says "well it's kinda interesting" he walks off towards the tree. In the shot showing him heading to the tree, the drawbridge is suddenly facing the door, perpendicular to the tree.
Factual error: In two, maybe three scenes, there are ring-necked pheasants. One is early in the movie as the Jameses ride past a butcher shop where ducks and pheasants are hanging up for sale. One is mid-way in the movie in the scene of the house- or barn-raising and big picnic. The movie supposedly took place in the mid-1870s. Pheasants were not imported to America from China until 1881.
Continuity mistake: When Angus and Yellow reach the lake, Angus's face is tore up pretty bad, but after they cross the lake and go to the building on top of the mountain his face is almost completely free of any injuries.
Continuity mistake: When Dawn is getting food for Steve, she is shown pulling out a wooden tray, but in a quick shot change, the tray is shown on the table with a plate of food already on it.
Revealing mistake: At the cemetery, a reporter nudges a headstone and it moves, revealing it is fake.
Audio problem: On the video version, in the barbecue scene, the band starts playing the slow song. The camera is on Eddie and his daughter and they are dancing. If you look closely, the male singer in the background is shown standing on stage and just holding his guitar and not singing, even though the vocals can be heard. In a later shot, he is actually singing. Still later in the scene, he is shown just standing on stage and not singing.
Factual error: At a very early point in the film, the King says something along the lines of "....and these are your playmates". In the background is a horde of 17th century ladies boating on the Achille Duchenne water parterre at Blenheim Palace. The palace wasn't built until the late 18th century, and the parterre was not designed until 1925.
Continuity mistake: When Darius, Sterling and Jeffrey are talking in the anteroom at the memorial, the door leading out is shown open, then closed, then open again in three successive shots, but nobody is seen closing or opening it.
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.
Continuity mistake: When Vic is tearing apart the deck, he uses the golf club to "tee off" on the wood knobs on the top of the deck posts. He hits the same one off a couple times and tears out the same boards a couple times.
Continuity mistake: During the camping trip, when Chevy and JTT are talking about the guys who have come to kill Chevy, JTT's feather changes colors from plain black to black and white.
Continuity mistake: When Tommy is buying the right to perform the Parker brothers' material, Tommy asks to see the material that he's just bought. He stands up and turns the chair round so that it's facing away from the table. The shot then changes, and he turns the chair round so that it's facing away from the table again.
Factual error: In the movie, Wild Bill has a shootout with the bad guys in the stables. He is holding two colt revolvers, each having the capability of holding six rounds each. However as a safety precaution, only five rounds were loaded in the revolver with the hammer resting on an empty chamber as a safety. Therefore, he could only have ten rounds total from the two colt revolvers. He fired far more than ten rounds without reloading.
Revealing mistake: When the tube is being inserted into Crazy K's nose, an imperfection in the tube is visible near the orderly's fingers. It doesn't move, despite the orderly "inserting" the tube.
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.
Visible crew/equipment: The demolition crew can be seen on the driver's side window when Sonny Chiba and Brigitte Nielson's characters are fleeing the scene of a blown up car. The shot has Robert Davi's character chasing after them and then hearing the explosion behind him. You can see a crew person sitting and about four others kneeling, trying to evade cameras. This happens in scene 6 at 52.01 minutes into the movie. (00:52:00)