Battleship

When Alex, Raikes, and Beast approach the mother ship in the dinghy, Alex is standing portside.

Through Stone's specs, Alex is standing to starboard.

In the next shot he's standing portside.

When the USS John Paul Jones (DDG 53) is shown for the first time, its registration number is DDG 65.

The USS John Paul Jones has no helicopter hangars, but they appear at one point while the ship sinks.

When the glass breaks, Stone is wearing gloves.

The gloves disappear in the next shot, then reappear in the shot after that.

Decommissioned battleships, such as the USS Missouri, are not stocked with loaded munitions.

The crew of John Paul Jones readies the USS Missouri, a floating museum, for combat within an hour or two, albeit with the help of retired battleship veterans.

In the early 1980s, reactivating and modernizing Iowa-class battleships took two years.

The boilers on the Missouri generate steam pressure instantaneously, so the ship can be moved free of its moorings.

An Iowa-class battleship's boilers need 9 to 14 hours to generate enough steam pressure to move the ship.

On the real USS Missouri, at least one propeller shaft has been partially or completely removed, making it nearly impossible for the ship to move under its own power anytime in the foreseeable future.

During the soccer match at the beginning of the film, 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.

When the alien ship fires a ultrasonic attack, all the glass windows on the destroyer break.

Once the ultrasonic sound stops, some crew members use binoculars, with intact lenses.

They should've broken along with the windows.

The alien ship destroys the USS Missouri's rear cannon, and one of its front cannons.

In the very next scene, the Missouri fires a destroyed cannon.

When Alex falls from the ceiling while trying to escape the convenience store, he falls back first into a shelf containing what appears to be orange juice, with an impressive splash.

When the police subdue him, his white shirt is dry and spotless.

When Hopper climbs to the roof of the convenience, the time displayed in the upper left corner of the screen (presumably a video surveillance camera) goes from 12:11.

57 to 12:12.

12 to 12:11.

Early in the movie, as the police chase Alex, a Rite Aid clearly visible in the background.

According to an earlier title shot, the scene is in Hawaii, which has no Rite Aids.

The forecastle team required to prepare and release an anchor would have required at least 10 people in the forecastle.

The order to drop the anchor implies it could have been released automatically or remotely.

The anchor cable is secured to a ship via a cable clench located deep in the cable locker.

Detaching it requires some serious human effort, not the automated release implied in the movie by the order "release the anchors".

During the ceremony at the end of the film, Admiral Shane presents the Navy Cross to Lieutenant Commander Hopper on behalf of his older brother, who was killed in combat.

Hopper is not a Lieutenant Commander; he wears the shoulder boards of a Lieutenant, and he is not promoted for his actions in the film.

When the Royal Australian Air Force (RAAF) jets save the Battleship, the camera cuts to a view within the cockpit, and a flag is visible on the pilot's helmet.

The flag is intended to be the RAAF ensign, but the RAAF roundel is missing from the bottom right corner, making it a mis-colored Australian flag.

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 the alien communications array is recovered, someone says it's made up of material which "isn't on the periodic table.

" All possible chemical elements can be placed on the periodic table.

The array may have been made up of an "as yet undiscovered element", but no scientist would have said an element was not on the periodic table.

Satellites are never used to amplify a signal; they can't generate that much power.

That's why the communication satellites uplink frequencies are higher than their downlink frequencies.

The Secretary of Defense seems surprised that NASA's Beacon Project sent a message to Planet G, even though it was a significant historical event and had made the TV news.

The ship is somewhere in the Pacific, but the sonar screen shows the Irish Sea.

The small island is the Isle of Man.

Landsat 7 is described as a "deep-space" satellite.

It's actually designed to take cloudless pictures of the Earth's surface.

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.

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.

The "too cold" planet at the beginning of the movie is listed at -314 Celsius, 41 degrees below 0 Kelvin (-273 Celsius), or absolute zero.

Many shipmates call Chief Petty Officer Walter "The Beast" Lynch as "Beast".

It is not proper Navy protocol for subordinates or officers to address him by a nickname.

While on duty, they should address him as either Chief or Chief Lynch.

When the JPJ sinks it goes down by the bow.

In the next scene the crew abandons ship.

When captain Nagata and Hopper are "climbing" the deck to reach the stern, one shot reveals the position of the ship being near vertical.

Still the two "walk" towards the stern, defying gravity.

The alien ships cross Jupiter's orbit and arrive at Earth in minutes.

Earth and Jupiter are about one light-hour apart, so they are traveling faster than light.

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.