Continuity mistake: The photo of Cleric Partridge with Mary O'Brien is crumpled and folded when we first see it in the morgue and when Cleric Preston shows it to O'Brien. However, when Preston is sitting at his desk and looking at the photo by himself, closeups of the photo show it as smooth without the signs of wear and tear seen previously.
Continuity mistake: In the scene where John Preston finds the room with the snow-globe and the record player, he is shown removing and dropping his gloves as he walks the hall touching the wall, prior to discovering the room. As he is shown entering the room, he is also shown removing the gloves that he had just moments ago discarded.
Continuity mistake: In the final rampage through the corridor, Preston shoots through the door, killing the guards on his side but also those in the room - we see them falling to one side. But when the corridor guards fall through the doors, in shots from Preston's point of view the guards are visible standing just inside the door before being knocked down.
Visible crew/equipment: When Preston returns to the Equilibrium after he has uncovered his window, there is a shot where the camera slowly moves from the front of the crowd to the back of the crowd. If you look at the backs of the people to the right you can see a shadow moving from someone in the film crew.
Visible crew/equipment: When Preston's apartment is being searched, he walks into his bathroom to find his hidden Prozium capsules. He shuts the door in the camera's face and when you see the interior of the bathroom (with the camera behind Preston) you can very briefly see the cameraman's head.
Continuity mistake: At the beginning of the film when the police arrive at the Resistance hideout we see the police pull up then take cover behind their cars, G36 rifles at the ready. A lone guy comes out and is immediately put down, as this happens you can see the windshields of the police cars are already shot up and cracked even though at this point the Resistance people have yet to return fire.
Continuity mistake: The cover of the book Sean Bean is reading reads 'The Poetry of William Butler Yeats'. However, while he's turning over the pages, the poems 'The Detective' and 'The Courage of Shutting-Up' by Sylvia Plath can be seen.
Continuity mistake: With the dog in the trunk, Christian Bale reaches with his left hand to pet the dog, then cuts to the close-up of his right hand petting the dog, and then cuts back to his left hand doing the petting.
Factual error: The real Mona Lisa is much smaller than the 'authenticated' painting shown in the film.
Revealing mistake: There is a shot right after the first time the clerics are entering the city from the nethers that you see an APC patrolling the wall road above the entrance. In that shot two shadows are being cast on the road. As the CGI APC passes through them they simply don't cast a shadow on it as they should.
Continuity mistake: In the opening action sequence, one of the sense-offenders slams wide the front doors of the hideout and begins firing at the police. The camera cuts to the police, who immediately open fire; when we cut back to the sense-offender being riddled by bullets, the hideout doors are securely closed behind him.
Continuity mistake: When you see cleric Preston's wife walking to the incinerator, if you look very closely, you see that they are not the same person, one is a look-alike. [Director Kurt Wimmer reveals the reason for this during one of the commentary tracks (still a mistake, but here's why). The incinerator scene was shot first. When it came to shooting the house arrest scene (which occurs earlier in the film, but was shot later) the actress was nowhere to be found, hence the use of a lookalike.]
Continuity mistake: When "Father" and Preston are fighting, Preston manages to take the gun away. You can see that both hands are empty, but during the next shot, "Father" still has a gun in his right hand. Then, when they cut to the full shot of father straightening up, his hand is empty again.
Continuity mistake: In the scene after the destruction of the "TV center", Preston is looking out through a window over the city's explosions taking place. In one shot his right hand is shown holding the red piece of fabric he got from Mary O'Brian. In a scene before that, when he destroyed the "TV center", his right hand was bloody. He could have gone to wash it in between, but that seems unlikely, since his neck wound is still not taken care of.
Continuity mistake: In the pistol whipping scene, we see Preston deploying a set of "studs" from his pistols. However, in a later shot, where we see the pistol butt's closing reflection on a visor, the studs aren't out.
Factual error: When they first pick up the Mona Lisa, they show the back. There you can see a canvas sheet over a wooden framework. However, the Mona Lisa is painted directly onto wood, no canvas at all. The scan they run even says it's painted onto wood, despite visual evidence to the contrary.
Character mistake: When Mary is in the execution chamber, about to be incinerated, there is a voice over of the countdown till her death. They count back from 9 seconds and say 8 seconds, 7 seconds, 6 seconds, etc. The count is too slow. Every time they say a second, it's actually two seconds having passed.
Revealing mistake: In the final encounter Preston takes on eight Clerics with Samurai swords. Watch him stab the last one and you can see the blade go under the man's arm. The shot changes and the flaw is just as apparent when Preston takes up the sword again, the stabbed Cleric is holding the blade for him.
Continuity mistake: In the burly battle at the end of the film, in which a couple dozen guards are dispatched, Preston's white Nehru jacket remains spotless. Even after he kills DuPont, there isn't a speck of blood on Preston's jacket. Moments later, in the Father's broadcasting room, Preston now has a considerable neck wound and a quantity of blood staining the jacket collar and shoulder. The DVD lamely attempts to explain this delayed bleeding as a bullet wound that Preston sustained while fighting DuPont. However, after Preston shoots up the broadcasting room and finally exits the Equilibrium building, the blood stains have mostly vanished from the shoulder and collar of his white jacket.
Continuity mistake: At the end of the Kung Fu gunfight between Preston and DuPont, Preston snaps some of DuPont's fingers and gets his gun away from him. Just after that, DuPont screams "Wait! Wait!" Watch his hand as he says this. The close up shows DuPont has his index finger extended and pointed at Preston with his other fingers folded down, and his thumb extended out. There is a jump cut to a distance shot and suddenly his hand changes. Now all his fingers are extended towards Preston. After a moment, he slowly folds his other three fingers and his hand looks like it did previously. But then the shot cuts to behind DuPont and all his fingers are extended again.
Revealing mistake: Before Mary is incinerated, she is shown standing behind the door looking through the T shaped window. Only a portion of her face is seen with her right eye on the left side of the opening, and some hair wavy over it. The shot cuts back and forth between her and Preston a few times, then the camera zooms in on Preston's eye. Mary's reflection is in his eye, however it is not a mirror image when it should be. It should be a mirror image reflected.
Continuity mistake: Preston confronts Partridge in the church about the book. Partridge talks first, and then Preston raises his gun and pushes on the book in Partridge's hands to see the cover. The shot from behind Partridge shows the book tilted up at less of an angle than when from Preston's view.
Continuity mistake: The second interrogation of Mary doesn't go so smoothly once Preston tells her that he was the one who killed Partridge. She grabs a pen and tries to stab him with it. They wind up on the table in their struggle and he is on top of her. The side shot shows their faces right next to each other, with their noses barely an inch apart. The shot changes to over Preston's shoulder and their faces are suddenly noticeably much further apart.
Revealing mistake: During the fight where Preston deploys his lethal pistol whips on the Grammaton cops, watch closely towards the end of the sequence. There is a semi close up of one of the cops getting nailed in the face with Preston's gun. His helmet's visor shatters and you can see some red come off it, supposedly blood. But you can see there is a second layer of protective visor sunk back in the helmet to protect the actor's face from shattering glass/plastic.
Revealing mistake: Preston pulls his bathroom mirror out of the wall so he can hide his Prozium behind it. The shots taken from inside the hole in the wall have some sort of blue glow at the very bottom. You can tell this is some sort of light, probably on the camera itself, as when the mirror is put back on the wall, it should be pitch black inside the hole as it blocks out all light. But the blue glow remains.
Continuity mistake: After the puppy barks from inside the trunk, the cop goes to it and looks at Preston. Preston asks one last time for him not to do it. Shot changes to showing the cop again. You see him reach down and lift his arm, and you hear the sound of the trunk creaking as it opens. Then the shot cuts to showing the trunk. Now you see him lift the trunk and hear it open again.
Continuity mistake: In the bathroom after the first interrogation of Mary, Preston is holding a vial of Prozium. He holds it between his thumb and index finger. As he looks at it, he rotates his wrist and turns the Prozium sideways, still between the same two fingers. The close up shows Preston's thumb facing inwards, towards his face and his index finger facing out. The next shot from in front switches these, the thumb facing out, and the index finger on the inside.
Continuity mistake: During their first interrogation, Mary grabs Preston's hand and pulls him close to ask why he is alive. Pulls his hand right up next to her chin, almost touching it, as you can see from the side angle showing both of them from the side. But it then cuts to showing Preston from over Mary's shoulder. Preston and Mary are now further apart suddenly. You can tell by looking at the distance of Preston's wrist in relation to Mary's hair.
Continuity mistake: In their first interview, Preston slides a 1/3 full vial of a yellow substance across the table to Mary. After a moment, she picks it up off the table and puts it in her lap. Moments later, before she grabs Preston's hand, she reaches out to slide the vial back, which is now already back on the table before she touches it.