Revealing mistake: When Eric Matthews is smashing his foot, he hits it the first time and it shows a close up. If you watch the small amount of blood when he hits it again they have used the same shot. (00:04:00)
Revealing mistake: In the disco scene, the DJ is playing music, but the Pioneer decks and the DJ Mixer are not even turned on, as no lights are showing.
Revealing mistake: During the final conversation between Detective Frazier and Arthur Case, Frazier holds up his hand with the ring on his middle finger. It is pretty obvious that the hand was inserted into the scene in post production; the hand doesn't move in a natural way and simply looks out of place.
Suggested correction: Really? I don't see anything unnatural in the hand's movement at all. Doesn't look at all obvious to me that it was inserted in post-production. After all, Frazier refers to "this ring." They will want it in shot so I'm sure they made sure Washington held it in shot.
Yes, really. Look again. Look at how it moves down and vanishes out of the frame. No human hand moves like that! They didn't have Washington hold it up for the shot and it was inserted later as a pickup shot. See this IMDB goof entry for more details: "During the final conversation between Detective Frazier and Arthur Case..." "a picture of a hand with a ring on the middle finger was inserted into the scene - first moving up into the shot, and then moving down off screen."
Revealing mistake: When Costello's men drive off, after throwing Queenan off the top of the building, the state troopers are firing at the van. One back window is shot out, then in the next shot of the van the other window is shot out and then the same one is shot again so the one window is shot out twice in the same scene.
Revealing mistake: The money that the two gang members are counting in the opening view of the hotel room scene is obviously fake. Notice how white the bills are, when they should be greener and have more of the random anti-counterfeit features. (00:02:00)
Revealing mistake: In chapter 14, Bill Cox calls Harry, who's asleep in bed. Harry answers his flip phone, but doesn't flip it open. (00:54:50)
Revealing mistake: After John and Nelson are led to their prison cell, Nelson walks to the toilet and starts complaining about how disgusting it is. When Nelson steps away from the toilet, he breaks down in tears and let's himself fall backwards against the 'stone' prison wall. The wall is seen moving, which reveals it's not a real stone wall, but made from a softer material, like wood or plastic. (00:25:15)
Revealing mistake: When the dad inserts the rectal thermometer into Calvin and he looks up, the CGI head is too obvious, especially when he is putting his head back down on the bed.
Revealing mistake: When Jack drives the bus down the alley, it knocks a series of A/C units off a building. The last one comes open and there is obviously nothing inside. (01:12:35)
Revealing mistake: After Raye has finished writing down the agent's names onto the piece of paper on the subway, the "dead" man next to him can be seen swallowing. (00:57:30)
Revealing mistake: In the scene where Rooster is driving/running away from the gangsters, he is supposed to be alone in his car but in one shot a hand appears and is holding on to the passenger side door from inside the car.
Revealing mistake: In the balcony in Havana, when Sonny and Isabella are talking about her old house, the shoreline view is not nearly similar to the real "Malecon" in Vedado, Havana.
Revealing mistake: When Lee is being lifted into the incinerator, he moves his head, despite being dead.
Revealing mistake: As Clouseau falls down the stairs when pretending to read the newspaper, you can see his legs flick up after he has supposedly fallen beyond sight - indicating he fell onto a mattress just below the camera's view.
Revealing mistake: When everyone first gets off the bus outside the hotel, Williams shakes hands with Margaret. If you look at his wrist you can see his real skin, not the prosthetic which is supposed to go nearly up to his elbow. It can be seen a little better in the next shot as well.
Revealing mistake: In many of the scenes, particularly when Michael Douglas is leaving the cafe, you can see onlookers staring into the camera. A possible explanation is that few extras were used.
Revealing mistake: Right after Sage plays chicken with the cops, the cop car is shown peeling out in reverse to follow her down the alley. The dust from the burnout is ejected towards the back of the car. Being a Crown Vic, the car has rear wheel drive but the dust should be moving opposite the car's direction. What this shows is that the car was actually being pulled backwards as it attempted to accelerate forwards. What's more is that even the sound is of a car spinning its tires opposite to being dragged. (00:12:50)
Revealing mistake: While Suit is in a coma, there's a closeup of the monitor beside his bed showing Suit's vitals, and at the top of the monitor's screen are the words "adult simulating," with the timed "simulating" flashing off and on. There's also a strip of narrow filament tape covering "simulating," but the tape is transparent, so we can still see it flashing. (01:17:25)
Revealing mistake: When Chev discovers he's been poisoned and picks up the TV, you can see it's not turned on, nor does it have any wires. (00:04:00 - 00:05:00)
Revealing mistake: When Lindsey runs to answer her phone after she asks Slevin to explain why he was still wearing a towel, you can see the tattoo on Josh Hartnett's left shoulder blade coming through the makeup.