Factual error: A helicopter flying over the bank can be seen to have a Canadian registration number (beginning with C). A Seattle news or police helicopter would actually have an American registration number (beginning with N). (00:17:05)
Factual error: In the scene transitioning to the Christmas holidays, a shot of Central Park is shown with Christo and Jeanne-Claude's The Gates, Central Park, New York City, 1979-2005 in the park. However, this display was unfurled on February 12, 2005, after the holidays were over.
Factual error: In the scene where Caroline finds the conjure record, it is written in ink on the sleeve that it is from "New Iberia Parish". Such a parish does not exist in Louisiana. There is a town called New Iberia, but the parish for that town is Iberia Parish.
Factual error: The Douglas firs or Redwoods shown at the front of Longbourn (Groombridge Place) were not introduced to the UK before 1827, but the film is set in 1797.
Factual error: In the scene where Brian gets fired from The Rolling Stones, Keith Richards sees a live album Jimi Hendrix and mentions it, Brian says Hendrix sent him one. But this scene must have taken place in 1969: Hendrix hadn't released any live albums earlier than 1970.
Factual error: When Fabrizio arrives by ship you can see the cooling water jet coming out of the boat.
Factual error: Maggie magically overcomes her disability in a single session of reading a poem.
Factual error: Although set in rural Wyoming, Einar's truck is a mid-60's Mercury brand pickup. Mercury brand trucks were only sold in Canada.
Factual error: When Helen is leaving church, she says it's April 25th. In the movie, the year is 2003 (you can tell because she writes dates in her diary). April 25th in 2003 was actually Friday not Sunday.
Factual error: There is no way that the Jack's cigarettes and cigars could have survived being washed up on shore.
Factual error: The trip goes back 65 million years. This is the late Cretaceous period. The Allosaurus was a Jurassic period dinosaur, which became extinct before the beginning of the Cretaceous period. Granted, the Allosaurus was probably the most powerful predator of its time, the events in this movie take place long after the time of the Allosaurus.
Factual error: In the web chat you can see the term 500 mbps on her streaming. That's far higher than any realistic speed for that time and place, and way above what's needed for web chat anyway. (00:22:50)
Factual error: The DC shore based radio operator mistakenly tells the last known coordinates of SS Poseidon as 28° East longitude and 80° from Greenwich. That is nonsense because both mean longitude. Even though it can be assumed that what she really mean is Latitude: 28 degrees South and Longitude: 80° East from Greenwich, that is still not enough to specify the ship's position as the margin of error is about 400km. (01:25:20)
Factual error: When Sid gives his credit card to Jay to pay for their meal because Jay's mom doesn't have enough money, a magnetic strip is on the back of the card. This technology wasn't used on credit cards until 1980. The film takes place in the 70's.
Factual error: Gordon Brown is played by an actor who is 6ft 3in, while Tony Blair is played by an actor significantly shorter at 5ft 9in. Tony Blair is in real life fractionally taller than Gordon, at 6ft and 5ft 11in respectively.