Character mistake: When the plane is speeding down the runway at the beginning, a female flight attendant is seen walking, and Kyle is seen buckling her seat belt. Everyone would have been sitting down and buckled in at this point.
Character mistake: When Marion is calculating how much she spent her math is wrong. The movie shows 400000 - 4036 = 395963. It should be 395964.
Character mistake: After Ben tells his story about his first encounter with the ghouls, Barbara begins her story. She talks about the ghoul Johnny was joking about. She tells Ben that she wanted to apologize. She states, "I said good evening, and he grabbed me." If you go back to that original scene, you'll never hear her say "Good evening." (00:29:40)
Character mistake: Jungle Julia refers several times to Dave Dee, Dozy, Beaky, Mitch and Tich, instead of Mick and Tich.
Character mistake: When the deputies chase Rambo in the forest, sometimes Teasle refers to Shingleton as Shingleton, but sometimes he calls him Singleton.
Character mistake: Stallone says he knows they are in the Northern hemisphere because of the way the water goes down the toilet. The Coriolis effect has no impact on water in the toilet.
Character mistake: When Jenny McCarthy goes to the office to meet the director. She's calling out his name to see if he's there & calls " Roman.......Ronin.......Roman". (00:23:15)
Character mistake: When Deckard is talking to the street merchant trying to identify the snake scale, the identification number he reads aloud is not the number that shows on the monitor. (00:47:30)
Character mistake: Nicole Johnson, a criminology professor, after enumerating a number of facets of jurisprudence, states that following these tenets is, "The only way the criminal justice system can ever be perfect." As a professor, she is surely aware that, despite following the pronouncements in the referenced book, criminal justice is far from perfect.
Character mistake: The word "satellite" on the uplink screen at which Sam Rockwell spends a lot of time staring, is incorrectly spelled "sattelite". The correct spelling is used a little further down on the same display.
Character mistake: At the end, when Mitch tells Agent Tarrance that the government can convict the law firm on mail fraud and racketeering, he says he got the idea while he was studying for the bar exam. He actually got the idea from a client earlier in the film when the client was complaining about being over-billed and tells Mitch that every time a bill is mailed through USPS, the firm is committing mail fraud which is a federal offense, punishable by fines and prison.
Suggested correction: This is not wholly correct. Mulholland (the client) planted the seed in Mitch's head, but Mitch realised instantly that it was a federal offense, presumably because he had studied it.
Character mistake: In the scene where Detective Fanning and the other cops are investigating the first murder, one cop tosses a shell casing in a baggie out the window to Fanning. The cop then remarks, "You can still smell the cordite." This is incorrect because cordite has not been used as cartridge propellant since approximately the end of World War II.
Character mistake: At the Gazette office, as Ms. Rees-Jones watches, Steven scrolls up the next front page of the Gazette on his PC and under the photo of Chuck Hughes it reads, "...dead at age 37." However, when Frank gets into his car after being kicked out of the cemetery, under the current Gazette headline it reads, "30 yr. old Chuck Hughes who died of a mysterious heart ailment..." (00:03:10 - 00:05:30)
Character mistake: When LT. Col. Robert Neville's wife fails the eye scan and he's ordering the soldiers to scan her again, the soldier that escorts them to the scan point, and later to the helicopter mistakenly uses Will Smith's real last name. You can faintly here him identifying LT. Col. Robert Neville to another soldier as LT. Col. Robert Smith.
Character mistake: At the end of the film, the newscaster comments that the lone assassin has been killed, but the ticker beneath him reads "Lone assassin arrested."
Character mistake: Debbie is doing an "All 80s weekend" on her radio show, and the film's soundtrack is based on exactly the same idea. Debbie plays 'Rudie Can't Fail' by The Clash. This is from the London Calling album, which was released right at the end on 1979 in most countries. The song was never released as a single in any year, so it's definitely a 70s song. What's interesting abut this mistake is that the soundtrack was selected by former Clash lead singer Joe Strummer.
Character mistake: When newspapers are flashed on screen to demonstrate how the dragons have destroyed the countries, one of the headlines reads "Europes' capital cities in ruins." It should read "Europe's capital cities in ruins."
Character mistake: When Harold is recalling Michael's 'credentials', he refers to Hilcrest academy, claiming that Michael killed four students. However, Michael only killed two; Sarah and Charlie.
Character mistake: In the scene where Billy is called to the crime scene of Andrews' murder, Andrews' body is shown with a wound on his chest. Later in the movie though, Billy is questioning Todd Lancaster. Todd Lancaster says that he saw Andrews get shot in the head. (00:52:00 - 01:25:00)
Character mistake: When Jackie the babysitter is stuck in the closet, she explains to George and Kathy that the door was locked. George says Amy there's no lock on this door. Her real name is Amy and her film name is Jackie.