Factual error: During the first scenes of the film the Greek flag used is the current one, and not the one used at that time. The flag that should have been used is a white cross on blue.
Continuity mistake: At the end of the movie when Steve and Anna are in the boat going across the harbour, in the background is a Shell petrol station on the shore. The boat is travelling from left to right across the screen, but as the camera shots change from Steve to Anna, or both at once, the Shell sign keeps changing its relative position to the boat.
Factual error: The year is 1969 when they steal the first aircraft (single engine Cessna), and there is a 757 taking off in the background. The 757 first flew on 02-19-82. (00:22:05)
Continuity mistake: The grandfather, father, and son all have VERY blue eyes, but in the flashback scenes, the actor playing the grandfather as a young man has very dark eyes.
Continuity mistake: Just after Knoll has been beaten up we see Elwood sitting next to him. As Elwood switches on the light, we see that the left side of Knoll's face is covered in blood. After Elwood applies the bandage, the blood on his face has changed with much less blood on the left side. The blood was never wiped off.
Revealing mistake: When Jessica and Helen are arguing outside the dress shop, there are 2 girls crossing the street in the background who blatantly stop to watch the scene.
Continuity mistake: When Shaun and Charlie are running from the police, they hide behind a dumpster until a cop car goes by and then Charlie leads Shaun to a meat truck. He opens the back and lifts up the door just far enough so that Shaun can get in. In the next shot, when Charlie is getting in, the door is much higher up, about four feet higher actually, than it was a mere second ago, and there was no sound indicating that Charlie pushed it up further.
Continuity mistake: After Ciki gets out of the trench to get a lighter from his pal's bag he lights a cigarette while he is still squatting outside the trench. In the next shot you hear the lighter snap shut, and Ciki is leaning against the wall of the trench. (00:12:30)
Continuity mistake: There is a scene when a girl knocks on the door of the house of her friend. She opens and in the background you can see another girl doing nothing. The shot later she has disappeared.
Continuity mistake: After Cassie has met Shawn at the band stand, Shaun reaches out and holds her right hand, yet when it zooms in for a close shot of her, she is twiddling her scarf with her right hand, yet when it zooms out again, Shawn is holding her hand again.
Continuity mistake: In the scene at the little bar Bruce Willis kicks Billy Bob Thornton's chair over. Kate Blanchett picks Billy Bob up and tries to dance with him. A different angle shows Bruce Willis still at the table and the Billy Bob's chair is now upright.
Continuity mistake: At the slam dunk contest, after O completes his dunk, there is glass all over the court. When the kid comes to get the ball, you can see that all the glass is cleaned up and there again right before O throws the ball. (01:02:06)
Continuity mistake: When Margot is telling the story about how she lost half her finger it shows her putting the log up to be cut and it shows her left hand on top of the log. But when the shot moves out to show when her finger gets cut off, her right hand is suddenly on top of the log.
Continuity mistake: Gordon mentions that his wife accidentally spilled hot water on his leg and burnt it, but the actor only occasionally limps on it, although we are shown that he has an injured leg. This is mentioned on the commentary.
Factual error: Paris control refuses to allow the Concorde to land at Paris, and orders the flight to return to the US. It is highly unlikely that the Concorde can carry enough fuel to make two trips across the Atlantic without refueling. Very few aircraft have the fuel capacity to go to the destination and return. It usually costs too much to carry excess fuel on a flight.
Factual error: Philip uses his left hand to sign the decree declaring Joan officially crazy. No one in the 15th century would have used his left hand to write, as 1) it was considered the wrong hand to write with and 2) writing with the left hand would have smudged the fresh ink and rendered any document unreadable.
Continuity mistake: At the end, right before Matty is going to toss his keys inside the Cadillac, the window is only down a tiny bit, but when he actually tosses them the window is all the way down.
Continuity mistake: When the police secure the scene where Scotty was found a TV reporter makes a statement. She's standing in front of a tree with a big horizontal branch. When the camera angle changes the tree behind her is different with a much lower branch. (00:10:25)
Other mistake: One of the shots of the aftermath of the battle is played in reverse - e.g. the smoke from the fires is going down. (01:41:20)
Visible crew/equipment: When they first drive onto airport property, you can see the film crew in Jimmy's sunglasses.