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Updated recently Character mistake: When Hopper is being chased by the alien and he goes on deck, Rihanna goes into the control room and aims the cannon at the alien's head. Just before she fires she says "Mahalo" which is thanks in Hawaiian. It would have been better to say "Aloha", which is Hawaiian for hello and goodbye, just before she fires the cannon.

Edit Submitted by starmaster100
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Updated recently Factual error: Landsat 7 is not a communications satellite. Landsat 7 is an earth resources satellite. It takes pictures of the earth and then sends them back to be analyzed. It wouldn't have the capability of aiming at and broadcasting to a distant star.

Edit Submitted by topcattopcat
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Continuity: The Sampson is hit by one shell at first, leaving a large hole on the port side of the bow. But when it's being pelted with shells during the second volley, the hole in the bow is gone.

Edit Submitted by Friso94
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Other: When Alex Hopper is being tasered and arrested for robbing the convenience store, you can see his shirt is almost clean on his back. But he fell on the bottles and sodas rack in the store, the shirt should have stains.

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Continuity: After the Sampson is hit, and the captain says "continue fire", there is a shot straight from the front of the ship. That shot is flipped, you can see the damage done by the shell is now on the other side of the ship.

Edit Submitted by Friso94
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Continuity: The USS Sampson has no Close In-Weapons System at the bow when the movie starts, but uses one to counter enemy fire later.

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Other: The shot of the fleet outside of the barrier is reversed. The Aircraft carriers landing deck is slanted right instead of left.

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Factual error: When Alex Hopper is being tasered, and arrested for robbing the convenience store, you can see a billboard in the background. However, billboards are illegal in Hawaii, which means the scene must have been shot elsewhere.

Edit Submitted by Duke0716
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Continuity: At the scene when Hopper is playing soccer he receives a kick to his face, however the blood on his face changes between shots.

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Other: Alex Hopper's brother receives posthumously a Navy Cross (2nd highest award) for attacking the aliens, but Alex Hopper only receives a Silver Star (3rd highest award) for saving the world?

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Factual error: When the alien ship crashes into Hong Kong's Bank of China building, flaming debris can be seen flying past the statue of the Big Buddha, which was also established in an earlier shot as being located just behind the financial area of the city, Central. In reality, the Big Buddha is nowhere NEAR Central, out of view of the Peak, and not even located on Hong Kong island - but on Lantau island, to the west. The Big Buddha is also not included in the Hong Kong city skyline.

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Factual error: Towards the end of the movie, an Australian F/A -18 Hornet is shown destroying the aliens, complete with Australian pilot. Firstly, the Ensign displayed on his helmet is incorrect. Secondly, the Australian Hornet fleet is land based; they are unable to operate from carriers.

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Continuity: When the Phalanx on the Sampson starts shooting at the incoming projectiles, it's a short-barreled version. When the shot cuts, the barrels are much longer.

Edit Submitted by Friso94
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Factual error: The first time the film displays the name USS John Paul Jones during the RIMPAC exercise it is shown as a destroyer with the hull number 65 (DDG-65 is USS Benfold) instead of 53.

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Factual error: Loading the projectiles and powder in the 16 inch rifles is done using a ram. The projectiles seem to just glide in on their own.

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Factual error: By the time the survivors of the JPJ arrive on board the USS Missouri, there are less than 3 hours before the satellite is in position. When lighting off cold boilers, it takes longer than that to get steam up, yet within minutes the bridge is informed that they have steam in all 8 boilers. If it was that easy, all the battleships at Pearl Harbor on December 7th 1941 could have gotten underway immediately.

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Factual error: How does the main hero Lieutenant Alex Hopper even get into the Navy as an officer in the first place with a felony breaking and entering on his record? You need at least a Secret clearance and a good moral background to commission as an officer, neither of which would be something Alex can get with a felony on his record.

Edit Submitted by AD
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Factual error: Each turret on an Iowa-class battleship required a crew of 94 to load and fire two salvos a minute. The makeshift crew, including former Missouri sailors (mostly septuagenarians) were equaling that rate of fire with a half dozen men.

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Continuity: The missiles fired at the aliens during the boardgame inspired scene, are shown to be a Standard Missile (SM-2) when leaving the launcher, then a Tomahawk cruise missile when flying towards the aliens.

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Factual error: In the scene where the alien is in the engine room, it shows the alien scan an exposed gas turbine engine. The gas turbine engines on a US Navy ship are not exposed, they're encased inside a module (big steel box) so in the event of a fire they can be easily contained with HALON.

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