Revealing mistake: In the scene when the main character is in the library on the internet, she goes to a couple of websites. When the shot shows the URL up top, it is C:\windows98\mydocuments\etc.html. Instead of actually searching on the web they used a premade html page and accessed it from their computer.
Revealing mistake: When Peter Parker first discovers he can climb up walls (while in citizen clothing), he tests it out by climbing up a building in an alley. During this scene, you can clearly see his clothes hanging out forwards, indicating that the scene was filmed with him crawling along a floor horizontally. (00:24:50)
Revealing mistake: After the helicopter escape at the end, a red sports car is sticking nose-down in the ground after falling hundreds of feet down out of the aeroplane, without a single crack in the windscreen, in mint condition. The yellow one only has the right door open. (01:59:30)
Revealing mistake: In the scene where Jack Ryan uses the radio after the helicopter crash, the film is reversed - the word frequency appears as a mirror image.
Revealing mistake: When Bert is running in the woods, away from the local guys, he rubs blood on a tree to make them believe he ran a certain way. Look close, the tree already has red tint on it probably from previous takes that didn't wash off. (01:04:35)
Revealing mistake: The Senator's Corvette explodes before it hits the ground. (00:09:10)
Revealing mistake: When the crew are getting ready to load up the gold, one of the crew slams the crate lid making the gold bars "move".
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. (00:08:40)
Revealing mistake: When Slim and her daughter are running away from the husband they run onto a bus. When it cuts to the bus driving away you can see that Slim is holding a dummy, which is supposed to be her daughter.
Revealing mistake: On the transport trailer, Frank leans out his car window and dramatically fires at the ramp's tall lever control in a close-up, located at the rear of the transport over the tires. The problem is that the trailer has no such lever control, as seen in the previous shot before it drives under the bridge overpass. (00:07:55)
Revealing mistake: In the scene where Norton's wife is target shooting with the revolver, there aren't any bullet heads showing in the cylinder. There's also no recoil as she fires.
Revealing mistake: One of the first times you see Balthazar (Michael Clarke Duncan) you can clearly see the adhesive for the fake scar on his right cheek and that it is coming loose. (00:06:00)
Revealing mistake: When Damoscinos is dying, just after being bitten, he stumbles to the ground. As he does so, you can see the tube feeding the green "blood" to his neck on the ground behind him.
Revealing mistake: When the group is being attacked in dining hall B, they are trying to get the doors open. J.D. is firing at two zombies and turns away to open the doors himself because Kaplan keeps forgetting the code. If you look closely, one of the zombies reacts a second late from being shot down. (00:44:40)
Revealing mistake: When the megalodon attacks the yacht the party goers jump off the yacht, and some of them reach the large round safety raft. To the raft's right, there is a visible yellow line attached to it so it doesn't drift away for the shots.
Revealing mistake: At the party someone asks Marcus his name and he replies 'Vincent' the actor's real name (Vincent Cassel).
Revealing mistake: During the windy scene in new york, just after she falls for the first time and after she hits the taxi trying to stop it. If you look in the background there is a guy with a bike. Long black hair, barely affected by the winds that are throwing her and other people about. (00:06:00)
Revealing mistake: When the camera pans up to show Manchester on fire, flashing lights are just visible on the horizon in the middle of the road. This is the police keeping the traffic back so the scene could be filmed.
Revealing mistake: Near the end of the film, when Picard bends the pole down to stab Shinzon, the pole supposedly goes through him and out the other side, but the prop travels several inches down his waist. A shot later, you can see the prop pushing against Shinzon's clothing, obviously not piercing anything. (01:39:17)
Revealing mistake: When Becky meets Simon in the cube, they hug, then Simon literally stabs Becky in the back. As she falls down to the floor, her black shirt reveals not only some of her chest, but part of a black microphone wire. (01:15:15)