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.
During the soccer match, Alex Hopper has a bloody nose after he is fouled in the penalty box. The blood disappears in the next shot, then reappears in the following shot.
The radar array on the bow of the Missouri appears and disappears in different shots, as do the dents in the ship's stern plates.
When Stone falls after the impact of the glass, a cut appears on the left side of his his face. When he gets up, it moves further to the left. In subsequent shots it moves to the right side, then continually changes sides.
When Hopper comes up to mother ship, he is wearing a cap. When the pulse throws him back, he loses the cap and gains a pair of gloves. In subsequent shots, the cap reappears and the gloves disappear.
When the full reverse command was given, an underwater view showed the propellers reversing their rotation. Arleigh Burke destroyers utilize reversible pitch propellers and therefore do not change their rotational direction during reversing maneuvers, they simply change the pitch of the blades to provide reversing thrust.
They fire up the boilers and in minutes report that the ship is ready to sail. A cold steam plant takes hours to fire up and heat up not only the water, but the boiler, pipes, and engines.
The main engines of Arleigh Burke destroyers are not in the open as was shown in the engine room. They are compartmentalized in a housing that is big enough to allow maintenance and repairs, but also allows the tremendous heat produced by the engine to be ventilated and also provides isolation for fire suppression.
Before the port anchor is dropped, the guns are rotated to "210". The guns are later shown to be aimed to starboard, and when the ship turns to port, the guns are facing the alien ship. "210" refers to 210 degrees, which translates to just left of directly backwards, or 7 o'clock. For guns trained to 210 to be aimed at the alien ship, the Missouri would have had to turn almost completely around to the right before firing.
Decommissioned battleships, such as the USS Missouri, are not stocked with loaded munitions.
After running from the convenience store, Alex is hit by two Tasers with two probes each. The next morning he has only two wounds, not four.
It would appear that the officer who originally fired the initial Taser shot then fired another, which would not send out another pair of probes. The shock would go along the same wires.
It would appear that the officer who originally fired the initial Taser shot then fired another, which would not send out another pair of probes. The shock would go along the same wires.
As the lights were turned on along the ship's corridor called Broadway, the railing system that was used in the movie Under Siege was still in place.
Hopper and Nagata, the men in charge, are jointly responsible for taking out all three alien surface ships, the mother ship, and the satellite ground station. Hopper's brother, who did absolutely nothing but send out a zodiac and give orders that were pointedly cautious, gets the Navy Cross but Hopper only gets a silver star. Considering that they saved the world from "an extinction-level event" this is wholly inappropriate.
When Boatswain Ord (Jesse Plemons) is looking through the viewfinder at the alien spacecraft in the water on the horizon, the bottom left of the viewfinder displays the distance to target. It is showing the spacecraft as about 12,400 yards away. Yet when he radios it in, immediately, he reports it as being only approximately 8,000 yards away.
The first thing the Navy would have sent to check out the alien ships would have been aircraft not ships. The would get there a lot quicker to send information back.
After hitting the two alien ships the captain's immediate order should have been to fire a second volley to make sure the job is done.
The notion that the aliens would use the colors RED and GREEN to represent THREAT and NO THREAT as humans do on Earth is patently absurd.
In the scene where the remaining crew is approaching the U.S.S Missouri they are approaching from the land side of Pearl Harbor. The U.S.S. Missouri is pointed Bow to Land to indicate peacetime status.
As wreckage from an alien craft crashes on Hong Kong Island the view shows a large seated Buddha located on the mountains above the city. This is actually located at Po Lin monastery which is on Lantau Island some distance from the area actually shown (and is well inland and in a largely rural area, unlike the water-front urban area shown in the shot).
The outgoing message to the remote planet is supposedly sent by the "Landsat 7" satellite. The Landsat series was not designed for transmitting signals but for conducting orbital photographic surveys of the earth.
An Arleigh Burke Destroyer contains 110 crew members, and a Japanese Destroyer must have almost the same amount. There is no possibilities that all 200 crew members fits in only two zodiacs when the American Destroyer sinks.
The alien ships are robust enough to impact the ocean at a high velocity without damage, yet a fragile satellite takes out their communications ship.
Interestingly, little naval vocabulary concerning direction is used by the characters, who would certainly have used them extensively. For example, Hopper says 'left' many times when ordering a change of direction, when 'port' would have been the word of choice.
During the ITV News' (a UK network) "UFO Landing Confirmed" breaking news scene, the lower caption shows the text "Amateur footage confirms rumors", should be "rumours".