Factual error: In the final scene, when Jack Sparrow is looking at the map to find the Fountain of Youth. The map lists Ponce de Leon's travel date of 1523. The actual date of the Fountain of Youth founding was 1513.
Factual error: When Richard asks Art his opinion of his book, a copy of "Haymarket Scrapbook" is on a shelf. This book was first published in 1986, yet Richard's book will be published in 1981. (01:03:00)
Factual error: Trudie and her family are released from jail because David, being the victim of kidnapping, decided not to press charges. That's not how things work. It's not up to the victim to decide whether or not to press charges. It's up to the prosecutor to decide or not to press charges.
Factual error: The license plates on Dan's car are very inaccurate fakes. The colors especially are way off. Certainly, the makers may use a fake sequence of characters the same way "555" phone numbers are, but the styling of the plate should look right. Real NJ plates are a pale yellow along the top 1/4 that fades to a very pale tan by halfway down. Dan's plate is a bright yellow (nearly orange) at the top and the rest is white. The numerals are also the wrong typeface. The mistake is made more obvious by the fact that real New Jersey plates are seen in the early portion of the film on other cars.
Factual error: In the scene when Milly is on the phone with her mom and sisters while at the architect's house, she hangs up on the party call and her mom hears a dial tone before lowering the phone which anyone with a cell phone knows won't happen. (00:41:40)
Factual error: When they take the General out of the water, they rebuild it from the ground up. They are somehow able to do this in maybe a couple of days which would be impossible seeing as how it was in the water. They would need to sandblast the rust, reprime the bare metal, and repaint it which would take more than 2 days alone, plus there were only Bo, Luke, Daisy and Cooter working on it.
Factual error: Although set in the 1960's, a modern UPS truck is seen just before the rooftop concert scene.
Factual error: When Chuck discovers the dry rot, he tells the Persons that he played 36 seconds for the Lakers in the 1986 NBA Finals. The Lakers weren't in the 1986 Finals.
Factual error: When Fogle shoots the cop's pistol at the burning police car, the safety on the Smith and Wesson pistol is activated. He fires the weapon until it is empty and continues to dry fire (click) the pistol anyway. On the Smith and Wesson, the side levers are in Safe mode when pushed down. When the last round is fired, the slide locks back and the gun wouldn't be able to dry fire.
Factual error: When the Chipmunks are going on tour and all of the cities are listed, it says that they're going to "Phoenix - NV" however it's clear they are in Arizona not Nevada, so it should have said "Phoenix - AZ." (01:02:40)
Factual error: When the two nuns strip to join Lorenzo in the bathtub, they both have bikini tan lines, hardly an everyday occurrence during the 14th century.
Factual error: In the scene where the angry mob is attacking the Simpsons in the tree house, Grandpa Simpson is shown aiming a double-barrel shotgun, which he then pumps to ready it for firing. There's no such thing as a double-barrel pump-action shotgun. (00:36:20)
Factual error: No army flight from Georgia to Iraq would cross central Mexico.
Factual error: After they arrive in Sarajevo they are driving through city and are observing demolished city. There is a red car parked behind three woman. That car is Chevrolet Spark (second generation) that was produced between 2005-2009. Film takes place in year 2000. (00:10:25)
Factual error: Although Charlie is apparently in the 'Class of '83', the DSM-TR that he gets from the library is from 1994, and the American psychiatry journals are from 1991.
Factual error: Text says zero degrees latitude, zero degrees longitude then shows an arctic scene. Zero degrees latitude is the equator. The position is in the Gulf of Guinea off Africa.
Factual error: When the girls talk at the beginning of the movie, they can fully hear and understand each other even when they are at massive distance from the webcams they are supposedly using to communicate.