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Factual error: Aboard the Navy helicopter Senator Chapman slugs a Navy seaman in the head, knocking the sailor out cold on the fist punch. But the sailor was wearing a helmet, hard on the outside and padded on the inside. It's not all that easy for an average person to knock someone out bare-handed; it's probably nearly impossible to do so through a helmet that's designed precisely to protect the head from hard impacts.
Revealing: Late in the story the Time Storm reappears. The Captain and his XO watch it approach through a window on the ship's bridge, and quickly debate if they should try to outrun it. They're far out in the Pacific Ocean, but what's visible through the window looks like dry land, with greenery and some buildings. The scene must have been shot while docked at port.
Factual error: Pearl Harbor is said to be 280 miles away from the USS Nimitz. An F8 Crusader on a recon mission to the harbor reports unusual shipping traffic, and that he will make another pass for a close-up series of photos. The CAG then immediately states the F8's ETA (estimated time of arrival) back to Nimitz is 12 minutes. At its maximum speed of 1,225mph, it will need to skip the second pass entirely to have any hope of returning in 12 minutes.
Plot hole: While still unsure where and when they are, the Nimitz has two F-14 Tomcats aloft, investigating a pair of low-altitude radar contacts. They determine the planes are WWII-vintage Japanese Zeros in full military livery. The Tomcats are told to shadow the Zeros without engaging them. Then, the Captain, the XO, the CAG and Lasky all go to a formal dining room and sit down to tea. In this scene, they talk about many other 1941-era things that are happening, but nobody mentions the Zeros. That fact, and that they left their Tomcats where they did, suggests this scene was meant to be in an earlier part of the film (when things seemed odd, but no imminent threat existed) and got moved here, creating a plot hole that the USS Nimitz could slide through sideways. US Navy nuclear carrier command staff wouldn't simply go have tea under the current conditions.
Factual error: When Captain Yelland is shown the reconnaissance photo taken over Pearl Harbor by his own plane, it is identical to the historic photo from Commander Faraday's files. If you look at the picture, you can see 2 torpedo wakes heading towards the ship in the center of the photo. This is confirmed by the Discovery Channel's "Death of the Arizona" program. The photo was taken just as the attack began, and at this time in the movie, the attack was still a day ahead.
Continuity: Senator Chapman demands a dry set of clothes, and is shown being given a set of clothes comprising dark blue trousers and a light blue shirt (Laurel Scott is shown being issued the same later on). However, when Senator Chapman next appears he's wearing a completely different set of tan Officers kit.






