Factual error: The train leaves for France from St Pancras station (clearly identified by The Shire pub), which is Northbound and has no connection to go back south for France.
Factual error: When the plane is taking off while the animals are on the runway they duck down hoping it will stop and it becomes airborne shortly before hitting them. In actuality they should have been blown backwards from the jets like ragdolls.
Factual error: At the end of the movie, they show a bunch of ducks flying. Those are not ducks, they are geese.
Factual error: While the problem with refuelling the SR71 is a real one for D.A.R.Y.L., he is never going to get that far. The SR71 had no self starters and required a trained crew with a starter generator mounted on a truck to get the engines going in the first place. D.A.R.Y.L. just pushes a button and away he goes. Not likely.
Factual error: If you have ever actually seen London then you can see that the route Hallie takes to get to the house would take you all around London.
Factual error: If the access hatch to the nose wheel well on an airliner was opened at any time during the take off run every alarm panel in the cockpit would light up like a Christmas tree. The pilot would immediately abort take off.
Factual error: When Peevey gets stuck in the truck, Cliff fires up the rocket pack and simply pushes it clear. If the rocket pack can push out enough thrust to move a 2 1/2 ton truck, Cliff's body can't take that kind of stress. He stretches his arms out, starts pushing, and sets off the rocket, putting himself between the truck and an accelerating rocket demonstrably capable of moving it. The truck is stationary so has 2 1/2 tons of inertia. The rocket instantly accelerates it to an appreciable speed. Human arms cannot take that kind of stress. He's going to be crushed.
Factual error: Near the beginning of the film, Calico is sitting with a cat on his right shoulder. Their reflection is shown in the glasses of a man directly opposite. The reflection shows Calico and the cat in the same position instead of being reversed, as a reflection would be. (00:04:30)
Factual error: The giant squid's tentacles aren't shaped like ones in the real world are.
Factual error: In the final inning of the district championship game, the Owls are ahead by one run and there are two outs when the opposing team's top hitter steps up to the plate. This is impossible because this batter was the final out in the previous inning when his team came to bat. That he bats at all in the final inning with two outs means his team would have batted around the order and scored at least 3 runs in that inning already and had the lead.
Factual error: The baby is expanded to approximately fifty times his height, width and girth but it's explicitly stated that he retains his orginal mass. This means he will have the same volume as one hundred and twenty five thousand babies of his original size, but will weigh the same as before he was enlarged! That child is going to weigh much less than the volume of air he displaces. He's going to float away.
Factual error: During the plague when the fire and rocks are falling from the sky, they fall behind a statue of Rameses and are seen through its hollow eye holes. It makes for a great image, but that would mean that the statue's eyes were punched out like a mask, even though before they were just carved into the stone.
Factual error: When Gregorio and Ingrid are being chased by a helicopter during their wedding, the helicopter goes between two stone posts and the helicopter's blades break the post tops off. The problem is that both of the tops fall forward, which is wrong - one should fall forward, the other one should fall backwards. (00:05:50)
Factual error: When Mr Bean arrives in Paris from his Eurostar train, he arrives in Paris Nord train station. In reality, the Eurostar platforms are fenced off to prevent train-hoppers and are against the station wall, rather than the middle.