Character mistake: David Niven and his father are playing chess, and to checkmate his father, David Niven makes two moves, which you absolutely can not do - the only time you can move 2 pieces is when you move your castle and the king at the same time (castling), but you can't do that when you are in check.
Character mistake: In the bathroom scene with the fat man tied up, Kevin answers his phone upside down.
Character mistake: In jail when they're all sitting down to eat, Paulie says "c'mon boys let's eat, Freddie, Vinnie let's go" The problem is the other guy's name is Johnny Dio, not Freddie.
Character mistake: The downed firetruck was referred to as engine 17, however it is actually engine 23.
Character mistake: As Lex is studying the recording of when Superman's body vanishes, he says "A 19 second black out at 3:47 AM." But the clock on the video shows it goes from 3:47:05 when the blackout starts, to 3:47:26. The blackout was 21 seconds, not 19. (00:45:55)
Character mistake: When Murphy shoots down an F-16, the guy says "we just lost a M-16."
Character mistake: Blore accuses Lombard saying "What about those 21 poor natives in South Africa?" The record played during the first evening mentioned indeed 21 men, but that were natives of a tribe in East Africa. (00:14:20 - 01:10:10)
Character mistake: Max back in London is referred to as Group Captain, but his RAF Rank shows him as a Squadron Leader.
Character mistake: Buster and June are watching TV, and he says, "Hey, Julie" (the actress' real name). (00:08:07)
Character mistake: When Woody Harrelson picks up the movie magazine and opens to a page, he says "I love Clara Bow." The picture he is looking at is of Jean Harlow. (01:00:54)
Character mistake: While listening to the fixed record at the antique music instrument shop, Chris talks about 1800 instead of 1900. (00:30:45)
Character mistake: In their meeting, Gavin Elster tells Scotty that the speedometer on Madeleine's car showed she'd driven 53 miles.
Character mistake: Lawyer Tom was in the bar when locals were speculating that Kya killed Chase. He told Kya that people in Barkley Cove call her "Marsh Girl" and "When you stand trial, you will be judged by a jury of your peers from Barkley Cove." In the courtroom, people were shouting "She's guilty" and "We all know she's guilty." The judge pounded his gavel and said, "We will now begin jury selection." Tom and/or the judge should have filed a "Motion for Change of Venue" to ensure a fair and unbiased trial. (00:10:23 - 00:29:44)
Character mistake: Near the end of the movie when Ray shoots Odell, Ray checks Odell's pulse using his thumb. Since the thumb has an artery in it, you should never check someone's pulse using your thumb. As a cop, he should know this because I'm sure he's taken basic first aid.
Character mistake: During the game against the Cardinals in the playoffs, the announcer says that Averman passed to Guy who then scored. First, Guy does pass the puck back to Averman, but then he passes it to Banks who scores the second goal, propelling them to the playoffs.
Character mistake: After crashing their car into the bar the Tender Trio attempt to flee on foot but Clipper twists his ankle. Goose says "Goose f***ed up his ankle" accidentally referring to himself but obviously it's Clipper that twisted his ankle. (00:14:59)
Character mistake: The police radio identifies the fugitives' car as a 1958 Cadillac, but it is a 1962.
Character mistake: When Curtin shoots Dobbs, the two shots are close together in time. When Curtin explains it he says that he was shot and falls. Then Dobbs shoots him again. This takes time but the shots were fired very quickly.
Character mistake: When Amy goes to Virgil's house to apologize, Virgil tells Amy that the tree is exactly 14 steps away. However he then leads her there by taking 17 steps.
Character mistake: When Dolph is looking at the logo for the Red Dragon brewery, he says, "That arrogant scumbag mother fucker. He put the yakuza iron claw right on the logo." But, the iron claw is not the logo of the yakuza. It's the logo of the specific syndicate run by some members of the yakuza, as Dolph stated after ripping open the shirt of that guy in the interrogation room. So, he just wrongly stated what the logo really belonged to.