Plot hole: Anderton's wife gains entry into the jailhouse using her husband's eyeball - but he's already locked up inside, so his eye would not still have access to enter as it pleased. Any place anywhere that would have any sort of security system requiring anything from a simple passcode to a card key to a retinal scan, would immediately delete the user in such instances from all rights. And would also certainly report on any attempted use of such (retinal scan, pass code, whatever).
Continuity mistake: In the beginning, when Anderton arrests the jealous husband, he notes that he is being arrested on April 22 - that day - for the future murder of his wife and her lover. Later, while Anderton is jogging, we see billboards advocating a "Yes" vote on pre-crime on April 22. The next day, Anderton's boss Lamar notes that the vote is in a week, which would make it April 15, making the day that the jealous husband was arrested April 14, not April 22.
Factual error: The time period of the movie is 2054. There is an election day (April 22nd) that is on a billboard and then announced as a Tuesday. However, April 22nd, 2054 is actually on a Wednesday.
Factual error: When Anderton jumps on the back of the jet packed cop, the thrust can sizzle burgers a foot away, but nothing happens to Anderton's jacket or shoes or anything. Even if he is hanging onto him on the side, he's still close enough. And how come the cops themselves don't get scorched by their own pack? I can believe them using asbestos pants in the uniform, but not Anderton's civvies.
Continuity mistake: Anderton's wristwatch is an Omega Speedmaster X-33, but it shows a Bvlgari display when he looks at it for the countdown to the murder he is to commit. When he's not looking at it, the watch can be seen with its original Omega face. One example of this is in the tub scene where one of the spyders is peeling off Anderton's eye bandage. The watch shows its Omega display (white hands on an LCD digital background). Omega's developer of the X-33 told me that this was a major legal battle for them.
Continuity mistake: In the part when Anderton is in the green house with the old lady, her hairstyle changes under her hat in every scene when she turns around, looks up or down or when they are talking.
Visible crew/equipment: When Anderton visits his wife after the auto plant scene, the camera pans around the car and the camera operator is clearly seen in the reflection on the bumper.
Visible crew/equipment: When Lamar shoots Witwer it shows the the bullet's point of entry. Looking closely at his shirt, you can see the outline of the square/rectangular blood pack.
Continuity mistake: When Anderton visits his friend to get help to download data from Agatha, he is wearing tan-colored pants. Later on, when they are running again, he is suddenly wearing blue pants.
Continuity mistake: In the final scene of the movie, as the camera pulls back from the cabin where the three pre-cogs were taken after leaving the Temple, there is a tractor to the left of the cabin. Between the tractor and the cabin is a small bush that is moving like it is being blown by a strong wind. However, the smoke coming from the cabin is more or less rising straight up into the air. In fact, it is drifting a little to the right while the bush is being blown to the left by the helicopter which has the camera.
Continuity mistake: Anderton is driving Agatha aka the Pre Cog in his car after kidnapping her from the Temple. She is complaining that she is cold so he takes off his jacket and puts it on her shoulder and body. The next shot is from outside the window looking at her and the jacket is down on her arm. The next shot is back to Anderton and the jacket is on her shoulder again. In the final shot of the Precog, the jacket is on her shoulder.
Plot hole: When Witwer invites Burgess over to discuss the problem of Anne Lively's murder, he gives Burgess Anderton's gun saying "We recovered that from Leo Crowe's hotel room", yet making no mention of why he is showing the gun. It makes no sense why he would bring the gun or give the gun to Burgess seeing as he would have to remove it from the evidence of the murder. There was no important evidence regarding the gun he would need to show Burgess and only seems to serve the plot (as Burgess uses the gun to kill Witwer at the end and the blame goes on Anderton). What complicates the matter further is that Witwer knows someone in the Pre-crime division was behind Anne Lively's murder, so to give a person who could very likely be involved in the murder a LOADED gun seems a little risky and unnecessary.
Continuity mistake: During the jet pack escape scene, we see Anderton scaling the side of a building followed by a group of precrime officers who fly up to catch him. When Anderton jumps and catches the officer directly below him, we cut a shot of the pair falling directly towards the camera. If you look to either side of them, you'll notice that all the other officers - including the one hanging from the rail without a jet-pack - have disappeared.
Continuity mistake: When Agatha is in Lara's bedroom, she talks about John and Lara's son Shawn. When John is sitting on the floor in the bedroom you can see his eyes have changed colors. First they are brown from the eye transplant, but the next shot of his head you can see his eye color is his real color.
Plot hole: It's good to know that in the future we will be able to simply walk inside a car factory (without ANYBODY working, neither employees, security people, or an automated protection system), get inside a brand new car and just drive away...
Continuity mistake: In the beginning of the movie, Anderton is working on the case with the jealous husband (case number 1108). During this scene, we see a shot of Anderton taken from behind the transparent screen. In the upper right corner of the screen you can see the case number (1108). Later in the movie, Anderton starts working on the case where he himself turns out to be the killer. This is case number 1109. In this scene we again see a shot of Anderton taken from behind the transparent screen. However, the case number is still 1108. Shouldn't it be 1109, since he is working on that case?
Continuity mistake: When Anderton is mad about the doctor sticking him with the anesthesia and is holding him on the counter holding the doctor's arm behind him, the needle changes places quickly and ends up in different places.
Continuity mistake: In the scene where Danny Witwer and Burgess are going over something that wasn't seen before, Danny's tie is loosely undone, but in the next shot it's perfectly done up.
Other mistake: The name on the red ball at the beginning has the name 'Donald Dubin' on it. But in the end credits, it is spelled 'Donald Doobin'.
Visible crew/equipment: When John and Agatha come to Rufus T Riley's place there is a low camera view of them walking through a doorway as Rufus starts saying about Anderton getting 'a little jerky for himself'. To the left of the doorway the crew are reflected going backwards filming the action.
Visible crew/equipment: In the scene where Anderton is going to kill Crow, the camera angle changes to behind Crow. In the window behind him you can see the demolitions charge used to create a bullet hole and crack the glass.
Continuity mistake: In the alley scene where the rest of John's team comes, he keeps repeating "everybody runs" and they surround him. After a dog barks at them he climbs up a fire escape. In one shot you can see the back of his jacket is cut and wires are sticking out. It's a very quick shot but it's there.
Visible crew/equipment: When Anderton is being chased by the pre-crime officers down the alley they pull a sick stick on him, which he then uses on one of the officers. If you freeze the image (better achieved on DVD) the officer is actually being sick out of his lower chin, not his mouth. This is obviously a result of a badly placed 'sick-guidence' tube on his neck.
Factual error: In the scene when Anderton escapes out of the Maglev Car, there's barely any wind blowing his hair or jacket, even though the car is moving at intense speeds and he can barely keep his balance. He jumps from car to car on a vertical track, jacket is not moving. Then he jumps on to the roof of another car and you him from the inside of the car, there's no wind movement on him at all.
Other mistake: When Anderton and the pre-cops are gearing up to prevent the Howard Marks murder, there is a shot of Anderton loading his gun. If you watch closely you can see he places a clip under the gun but doesn't actually put it in, he just sort of mimes inserting it.
Other mistake: Leo Crow grabs Anderton's gun and they each fight for control of it. Crow succeeds in forcing Anderton's hand to pull the trigger, killing Crow. The problem is, right after the gun is fired, we see a shot of Anderton with his arm fully extended and with his entire hand holding the entire gun, as if he had aimed and fired the gun himself. Such a sequence of events is at least totally illogical if not physically impossible.
Continuity mistake: The front door of Howard Marks house has no windows on the sides and a rectangular transom window above when seen from outside. When seen from inside, however, there are side windows and the transom window is now an elongated half-circle. Also the house is magically huge inside, and not in a way that suggests a conversion of two houses into a single unit.