Character mistake: When the mathletes advertise their poster on the desk it reads 3.14... then they make up numbers instead of following the actual number of pi. (00:01:00 - 00:03:00)
Character mistake: When Murphy shoots down an F-16, the guy says "we just lost a M-16."
Character mistake: Detective Spitzer went into Harper's dark/unlit house, saw his partner Greg on the floor, and then saw Alec standing in the kitchen. Without identifying himself, telling Alec to drop his weapon (pistol pointed toward the floor), or bothering to determine what happened, Detective Spitzky shoots Alec. (01:27:08)
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.
Character mistake: Toward the end of the film, Detective Davis orders Captain McKenna to put his badge on the table. New York City police always refer to their "shields", not badges.
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: When Eli discusses with Sonny about draft picking she mentions that Tom Brady was picked by the #198 place in the draft but actually he picked by the #199 place in the NFL draft. (01:10:00 - 01:11:00)
Character mistake: Jimmy is at work, feeling sick in the toilet. Two other employees are talking at the sinks. The man on the left is called Phil by his colleague at the beginning of the scene, but at the end of the scene, he calls him Simon.
Character mistake: When Troy is getting the bomb ready, the screen shows it will blow in 216 hours, which is 9 days. Yet the agent tells Archer it will blow in 6 days.
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: A newspaper is shown saying "Girls Body Found" as plural when it should be "Girl's Body Found" as a possessive.
Character mistake: At the poker game when Stella and Blanche come back from their movie, Stella is near the wall with her back towards Marlon Brando. As she says her line "how much longer is this game going to continue?", you notice Marlon Brando also says that line to himself as if he memorized the screenplay.he responds "Until we get ready to quit" and slaps her butt. (00:31:15)
Character mistake: When Col. Winter has Yates brought in to see him, Yates tells the colonel that his father won the "Congressional" Medal of Honor. This is a mistake, and one a lot of people make. The award is correctly and simply called the Medal of Honor, and one doesn't "win" the medal, it's awarded. (01:21:10)
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: At the end of the movie, when Jaggu is listening to the sounds recorded by PK, the audio contains the question which she asked, "Tumhare planet pe sab aise hi hote, bade kan wale?" but does not contain the answer which PK gave, even though he was sitting right there. This seems to suggest that PK did not exist in the real world.
Character mistake: When Lauren is playing roulette, she has $14,000 worth of chips sitting on red - if she wins, she gets double, $28,000; and if she loses, she loses all of the $14,000 - but the croupier is troubled and says to Lauren that she hasn't got enough to cover the bet, which is ridiculous; all her $14,000 chips are sitting on red, what more does she need? Even the head croupier is called in, and, after much chatting, all the other players are asked to take their chips away as only Lauren is playing this round, which is ridiculous: All they have to lose is $28,000; that's nothing for them.
Character mistake: The protagonist says "You know, Croesus once said 'Count no man happy until the end is known'" but it's not Croesus uttering that line. According to Herodotus, Solon says it to King Croesus. (00:03:00)