Character mistake: In the scene where Beatrice looks at the newspaper clipping about her accident. The word "sentence" is misspelled "sentance" (00:24:35)
Character mistake: There's no way that using a regular needle and thread to sew up that wound would work the way it's shown. Anybody who knew what they were doing - which John Cusack is portrayed as knowing - would also know that using unsterilized materials and instruments without a sterile field from an uncleaned massive open wound is a great way to kill your patient.
Suggested correction: The main plot of this film takes place inside the head of a murderer with dissociative identity disorder. The fact that stitching up a wound in that matter wouldn't work is irrelevant to the fact that it is how Malcolm is playing out the scenario in his head.
You're making a good point to invalidate a "character mistake", but couldn't the entry be reclassified as a "factual mistake" and stand as written?
Character mistake: When the revolutionary fighter commandeers Air Force One (we only know this once she's in control), a Secret Service agent is trying to break down the cockpit door by banging it with the butt of his automatic rifle. The way he's hitting the door, he couldn't break through a cereal box - it's much too weak. Presumably, the actor is taking it easy on the door because it's a cheap prop door. (00:11:15)
Character mistake: When David is at Nick's house looking at his motorcycles, he says "Oh wow, a '48 FL", then asks for the key and cranks it over with an electric starter. The first Harley with a starter was a 1965 FLH.
Character mistake: Henry believed his call to the Saratoga County Help Line #1-518-555-0121 was not effective because Glenn's brother George was the Social Services Director. The genius failed to look above the county level and discover there's a STATEWIDE CPS number that he could have turned to #1-800-342-3720. A call to the State CPS hotline probably refers calls to the relevant county, but Henry could have used what he wrote in his notebook "Why Calling Child Protective Services is not a plausible option." (00:28:56 - 01:01:11)
Suggested correction: It isn't clear what number Henry called. He had the county number underlined on the brochure, so I assumed that was the number he called. However, I replayed that part and the person who answered said "Child Protective Services." There was another number above for "National Help Line for Victim Advocacy" 1-800-555-0199, but that's not the National Child Abuse Hotline.
Character mistake: A guidance counselor/principal told Calvin, "You're a very very smart young man. Perhaps even gifted. Last year you scored in the top ten percentile on the PSAT..." Because Calvin deliberately "blew" the SAT, the school official was going to make arrangements for Calvin to retake it. But this would not be necessary. The PSAT score (out of 1520) is considered equal to the SAT score (1600). The school official would be more helpful by getting Calvin admitted to college using the PSAT score. (00:08:35)
Character mistake: When Harrigan is watching the surveillance video by Bill Paxton he states that the helicopter is a silver Alouette when it is actually an AS-350.
Character mistake: The woman who supposedly gets hit by the taxi near the end falls down well before it hits her.
Character mistake: White says Exley's father died in the line of duty. Exley said he was off duty when he was shot, and he didn't correct him.
Character mistake: The Fifth Amendment Double Jeopardy Clause does not apply. Libby could be convicted of 1st Degree murder when she gets out and pursues Nick. It doesn't really matter to the plot, however, because it was what Libby believed to be true and motivated her. Further, she ends up shooting Nick in self-defense. So it's all good.
Character mistake: In the opening scene where Olek Krupa is looking at flight departures at San Francisco Airport, you can briefly see two entries that say "San Frnsicso." (00:05:30)
Character mistake: Stephen Baldwin is alternately referred to as Mark and Luke Dodge, without explanation as to which is his real name.
Character mistake: Mac's cousin says that even if Nick wasn't a cop, he'd have to hate Mac's guts. He says that Mac wears a Rolex and Nick wears a Timex - not true. Nick is wearing a Rolex, also.
Character mistake: Sarah after speaking to Sky when they come back from Havana and the thugs leave from playing the crap game she goes in the Mission she reaches for the light string to turn off the light she doesn't ever get the string in her hand but the light goes off.
Character mistake: The newspaper that reveals the combination of products that activates the Joker's poison has at least two grammar mistakes on the front page. The word "deodorant's" should not have had an apostrophe, and the word odoreaters was spelled "odoureaters," which has the British spelling of the word odor (Gotham City is obviously in the United States, not the UK). (01:17:10)
Character mistake: On the way to Jerusalem, Poirot says that "that man, Weizmann, put it rather well the other day, before Lord Peel's commission", and gives a famous quote about the world being divided in 'two places' for the Jews (those where they are not allowed to live, and those they cannot enter). The movie takes place in May 1937, and Chaim Weizmann's quote is from November of the previous year. 6 months are hardly "the other day."
Character mistake: Why would the rich witness be at the supermarket himself and using a taxi cab?
Character mistake: Near the start, there's a misspelling of the word "Victim" in the newspaper heading "Police expect Beadie to mail latest victim's ID." Read by the man at the bar who is smoking a cigarette. (00:02:14)
Character mistake: On the boat when Bishop went to rescue her, Jessica Alba says to the guy beating her up "get the fuck off me Ray." Then a few minutes later she says to the same guy "let me go Frank."
Character mistake: The oldest boy says "Here comes the calvary" instead of cavalry.