Continuity mistake: When Tony kills the first fat guy, the fat guy falls back in his chair. Yet after Tony kills the other fat guy the first fat guy is back upright in his chair.
Revealing mistake: After Hank shoots Lou's wife in the kitchen, the camera shows Jacob walking into the house, then Lou's body on the floor with a puddle of blood around his head. If you watch closely, you can see Lou's left eye twitch.
Visible crew/equipment: A boom mic drops in when the hitwoman is asking where Riley is, after the shootout.
Continuity mistake: When John and Meg are trying to escape the carwash in the car, in some shots the back window of the car is totally missing and in others there is a large section of shattered glass still there. (00:41:24)
Continuity mistake: When Jennifer Lopez sits on a bed in the hospital, she is talking to someone on the other side of the room. When the camera points towards Jennifer the sheets of her bed are a little bit messy; when the camera returns to Jennifer in the next shot her bed is made up.
Factual error: After we are shown an aerial shot of New Orleans, then we see the scene where Lawson Russell pulls up in a New Orleans cab outside of a skyscraper. The only problem is, the skyscraper is the Library Tower, which is situated in downtown Los Angeles. (00:38:00)
Visible crew/equipment: About half the way through when Paul Newman is sitting on a seat in the police station with James Garner, the boom operator and another guy scratching his head can be seen to the left of Newman in the marble wall. It is fairly obvious taking up a 1/3rd of the screen. Also in the same time when Newman is walking through the halls of the police station with Stockard Channing a whole heap of movie posters can be seen on the walls like they used the offices of a movie studio as a police station.
Revealing mistake: At the beginning of the scene where the Reverend sells the guns to Mel, Bobby is walking outside and it is rainy and stormy. But once he enters the motel room there is sunlight streaming through the windows. Then, in the next scene when he is outside with Rosie, it's stormy again. (00:34:00)
Continuity mistake: First, we see Mr. Renaldi put both arms above his head while lying on the bed. Then in the next shot, he has them both down. His arm changes continue for the next two shots. (00:34:10)
Continuity mistake: At the beginning of the film, Bill is shown coughing up the white gloves that had been stuffed completely in his mouth. However, later in the film, Cobb does not completely stuff the gloves in Bill's mouth.
Continuity mistake: When Karin takes the gun up to her face to shoot herself, she takes it up to her left ear, but in the next shot the gun is at her right ear.
Factual error: When Jack arrives at a roulette table to replace Matt as the dealer, the roulette wheel is stationary. In UK casinos, it is never allowed to stop spinning at any point while the table is open.
Plot hole: Batman finds at Belson's home a handwritten list of substances needed for a transplant. Why would Belson, a medical authority in the field that knows those things thoroughly, even write a list down? If it's for Freeze to procure him the material, why would it be at his house and not with him, and when did he even have time to be at home to do that, since he has been kidnapped by Freeze when he was driving on the outskirts of Gotham and taken to the oil rig? If he had time to go home, he at least would have changed clothes, he's still in the tuxedo he wore when he was kidnapped the night before.
Factual error: The brothers are in a hotel room. Joe Newton is seen counting money using a "Baby Calculator." This particular calculator was manufactured by the Calculator Machine Company of Chicago, starting in 1939. The Newton gang's crime spree was from 1919 up until 1924 when they robbed the train outside of Chicago, so he was using a calculator that didn't exist yet. (00:30:30)
Other mistake: Christopher Reeve's nurse has just installed the camera, and they are showing it to Daryl Hannah. During a close-up of Jason Kemp's camera displayed by a monitor, she notices that the woman victim of domestic abuse is wearing too much make-up for that time of the morning, no doubt to hide the results of the beating she took. Jason does not move the camera at that point, but a minute later he (it actually looks like she is the one doing it, but there's an engine buzz so it should be Jason operating it, not her turning it by hand) rotates it to the right. The visual in the monitor is unchanged from earlier even if the camera moved. (00:33:30 - 00:34:30)
Continuity mistake: When Nick and Casey go into Ballpean's flat, nick is frisked by the bodyguard, who finds no weapon on him. Casey refuses to be searched. When a fight breaks out, Casey pulls out two pistols, so we understand how he smuggled them in, by refusing to be frisked. However, Nick pulls a machine gun out from under his jacket. There was no way he could have smuggled this in without the bodyguard catching him when he frisked him. It's a big gun too, which would have made it even more obvious if he tried to smuggle it in.