Demolition Man (1993)

Revealing mistake: Watch closely as Phoenix is about to fight the cops near the computer kiosk: the same two people wearing white robes pass behind the officer with the hand-held computer twice. (00:25:30)

Continuity mistake: When Phoenix throws Spartan over the bonnet of the red car in the museum, Spartan lands in a puddle that soaks his hair. In the next few shots, the hair keeps changing from being soaked to being dry. (00:50:15)

Plot hole: When Spartan jumps through the window in the excavation scene of the museum, he crashes into a room with bottles of drink on the shelves. Surely this room too would have been filled in and the window smashed during the earthquake, and the museum wouldn't have bothered to excavate it as it can't be seen from above due to the blanked out window. So what is that room doing there? (00:49:20)

Factual error: During the fight in the museum, Spartan gets three shots out of a shotgun which only holds two shells. (00:48:35)

Continuity mistake: When Phoenix blows up the door sealing the Armory, it is just about the size of a normal door, but when he runs through it to escape into the main hall, the door is four times larger. (00:47:40 - 00:48:40)

Other mistake: It seems curious that the museum, even in the weapons display, would have functional firearms and LIVE munitions of any sort, even if no one would be interested in ever taking and using them.

Revealing mistake: When Cocteau's corpse is thrown into the fireplace, you can see that it is a dummy due to the fact the the hair is longer and shaggy. (01:38:05)

Phaneron

Other mistake: When Simon Phoenix kicks through the windshield of the police car during his first fight with the SAPD, the windshield easily breaks into several large segments, as opposed to spider-webbing like real windshields made from safety glass do. Glass that would completely shatter and collapse into the car from a simple kick would be completely unsafe and illogical for a society that's supposed to be more technologically advanced than ours.

Phaneron

Continuity mistake: During the glass floor shootout at the museum Spartan shoots a light that falls through the glass. Right after Spartan shoots the light it goes dark but the close up of the light falling and hitting the floor shows the light to be still lit. (00:49:05)

Audio problem: After John Spartan crashes through the police station sign he says, "All I need is a needle and a thread." But when the camera is behind him and he says the line, "I really didn't say that, did I?" his mouth doesn't move when his face is in frame. (01:35:35)

Continuity mistake: When Phoenix first gets out he makes his way to a computer and the police come to arrest him. Phoenix takes one of the policeman and pushes his head through the side glass pane and walks away to fight the other officers, but when Phoenix goes back over to the computer the glass is not broken. (00:26:50 - 00:27:40)

Audio problem: In the European version, Taco Bell is replaced by Pizza Hut, however, when Huxley says to John Spartan that they're going to Pizza Hut, her lips say "Taco Bell". (00:57:00)

Factual error: Simon Phoenix uses the warden's removed eye to escape from the cryoprison. The eye is on a pen, and since the retina includes the back portion of the eye, the pen's nib would have not only destroyed the shape of the retina, but blocked the scanner from reading the complete retina as well. There's no way the retinal scanner would have let him pass. (00:18:45)

Revealing mistake: The cables Spartan slices in order to bring down the parasol, have quickreleases on them so that they snap in the right place. This is best visible with the second one. (01:01:50)

Continuity mistake: When Spartan is initially frozen in the cyro-liquid, air bubbles and ripples are in the ice around his mouth. Any following shot of him in the ice block shows no bubbles or ripples. (00:10:15)

Continuity mistake: When Spartan and Huxley go to Raymond Cockto's place, Spartan shoots all of the monitors with a silver gun, yet when Spartan points the gun at Cockto's head, which we see on the surviving monitor, it's a black gun. (01:18:25)

Continuity mistake: When Phoenix is fighting the police at the kiosk, he knocks the sunglasses off of one officer, but in the next shot the glasses are back when the cop is knocked out. (00:27:00)

Character mistake: In the scene where John Spartan goes into the sewers, he has a conversation with a Spanish-speaking woman. At the end of their conversation the woman says "Gracias" (correct Spanish) to which Spartan replies "Prego", which is Italian. Up until that point Spartan spoke perfect Spanish. (01:23:30)

Continuity mistake: In the car chase he crawls out of the window, the next shot shows the car door is open.

Continuity mistake: When Spartan is swearing at the verbal morality machine and pulls out several citations at once (the last ones he grabs), an actor and actress standing directly behind him start to walk away and go off screen to the right behind Spartan. The view snaps to Huxley and Garcia, then back to Spartan. When it snaps back to Spartan, the same two are standing directly behind Spartan again and start to walk away to the right again.