Character mistake: In the obituary for Clark Kent, the opening couple of paragraphs are repeated further down the article.
Character mistake: Chapman is wearing a gold oak leaf cluster insignia on his uniform which is the rank of Major. At the initial briefing he is introduced as Major, which is correct. Throughout the movie he is referred to as Captain, which is wrong.
Suggested correction: He is referred to by his name "Chapman"; it sounds close to "Captain."
Character mistake: When Nicolas returns from Mexico and goes to the gate of his house, he sees a sign that says his house is being sold at public auction. The word "foreclosure" is spelled incorrectly. It is spelled "forclosure."
Character mistake: During Mickey's MI it's stated that his blood pressure is 200/50 (that alone is ridiculous) and the doctor immediately says "OK. Let's start CPR." If Mickey has a BP he has a pulse, and any CPR certified healthcare provider would know that you can't do CPR on a patient with a pulse.
Character mistake: Sandra Bullock's German is very good, but not perfect. She says about her husband, "Gestern hat er seine Schuhe in den Gefrierschrank gestellt," ("Yesterday, he put his shoes in the freezer"). Immediately afterwards, she says "seine Schuhe ins Gefrierschrank," ("He put his shoes in the freezer"). The word Gefrierschrank (freezer) in German is masculine and can never be preceded by the accusative case contraction "ins", the contraction for "in das." She just changed the gender of the word Gefrierschrank (freezer) from masculine in the first sentence (correct) to neuter in the second sentence (incorrect). (01:40:05)
Character mistake: When Cutter is talking with Chief Biggs for the first time, right after the negotiations for fuel, Cutter says he is the former head of security for the airline. Since he has just been hired for that role (after being an independent security consultant), he should have called himself the future head of security, or new, or something of that nature. Former would indicate he has resigned from the position.
Character mistake: When looking at the various items in his safe deposit box, one of the passports has the name Henry Reed. However the serial at the bottom of the passport is mistyped as REED/HENTY. (00:41:25)
Character mistake: There's no apparent reason for Spock's conviction that the gravity boots are a damning piece of evidence that will reveal the assassins, especially considering how useless they prove to be after being found planted in an innocent man's locker.
Character mistake: When the little boy is reading his report about Abraham Lincoln, he states that Lincoln was born in a log cabin in Illinois. Lincoln was actually born in a log cabin in Kentucky.
Character mistake: In Pitch Black they established the system they crashed in (M-344/G) had 3 stars. Jack stated it when the 2nd sunrise started, and the solar system model also had 3 stars. In this film when Boss Johns starts asking about M-344/G he says it is "a backwater system with 2 suns and 1 habitable planet."
Character mistake: At the meeting of the MVD and FBI where they are discussing Terek's hiding place, she mentions that he's in the town of Porvoo and that it is 60 kilometers west Helsinki. Porvoo is actually 50 kilometers northeast of Helsinki. (00:12:45)
Character mistake: When Mick arrives at walkabout hotel, Nugget introduces himself to Mick as if they have never met before. Yet in the first movie, Nugget is asking how Mick is getting on in New York. It may be just a case of over familiarity by Nugget but it doesn't make a lot of sense.
Suggested correction: It's quite possible that they haven't met, but Nugget's heard about Mick, e.g. from the people in the bar, stories, etc. Having no doubt heard so much about Mick, Nugget probably feels like he knows him, at least enough to ask how he's getting on.
I think it was just a scene to introduce the audience to Nugget. I'm pretty sure that if Nugget was a regular in that bar, then he must have known Mick.
Character mistake: Dan is supposedly such an expert in Pakistan, but he hands Ammar the cigarette pack with his left hand (unclean to Muslims, and therefore not much of a gesture of hospitality).
Character mistake: Declan tells Ethan that 162 (meters) is "pushing minimum height for a (BASE) jump." This is not the case. It's not uncommon for jumps to be made from sub-100m heights. In fact the lowest BASE jump was debatably made from the hand of the Christ the Redeemer in Rio at 29 meters. However it must be said that jumping between buildings, like in the movie, is extremely dangerous and carries even more risk than just normal BASE jumping. (01:22:20)
Character mistake: When Carrie says to Bandit "are we doing 110? We're doing 110!" there is a shot of the Trans Am's speedometer. The needle is pointing to 110 on the kilometers per hour dial. On the miles per hour dial, the needle is pointing to a number between 65 and 70.
Character mistake: Alan Alda says that his personal security code is the street address that he lived on at Steinway Boulevard when he was a kid growing up in Astoria, NY. The name of the street in Astoria is Steinway Street. (00:19:50)
Character mistake: In her first walk through the city with Dr. Ido, after feeding the dog her sandwich, Alita takes a flyer and reads it. Between the lines that read "Wanted" and "Murder" there is a line in Spanish that says "Querido para el asesinato." It should say "Querido por el asesinato".
Character mistake: When the police scan Leeloo the first time, the computer reads "Commencin" instead of "Commencing."
Character mistake: The word "missile" is misspelled as "missle" on the sign at the research facility where the one passenger served as a scientist.
Character mistake: On several occasions, scientist (Clayton Forrester) refers to the impacting objects as "meteors". Any scientist knows (or should), that when a meteor impacts the the ground, it becomes a "meteorite".