Corrected entry: In the shot after the President penetrates the ship's shield, we see about 20 missiles fired at the front ship and all of the missiles make huge fiery holes causing quite a bit of damage. But in the shot where the small alien fighters start to attack the civilians at area 51, the ship (in the background) has no damage to it whatsoever.
Corrected entry: Will Smith's girlfriend avoids an explosion by ducking into a janitor's closet inside a tunnel, yet the special effects show the beam knocking over buildings, and there's even a shot of the entire city being levelled. The next day, however, there's all sorts of debris and survivors left behind. (00:47:55 - 01:06:15)
Corrected entry: In the introduction, the satellite collides with the alien mothership and explodes on impact. Satellites don't contain anything explosive and there's no oxygen inside them.
Corrected entry: In the opening scene from the surface of the moon, dust can clearly be seen swirling around the plaque. Since the moon has absolutely no atmosphere, what is this dust swirling on? (00:01:10)
Corrected entry: When the President arrives at Area 51 he orders the guard to open the "clean room" where workers are wearing full body clean suits. Yet a few minutes later when Brent Spiner and his crew arrive (from within the clean room) they are all wearing street clothes and lab coats, not clean suits.William Miller
Corrected entry: In the cable office where Jeff Goldblum works, there is a wall of TV screens, presumably to show all the channels that the company broadcasts. After the alien ships appear, the president comes on to address the nation, and we see him gradually appear on all of the screens. However, at the center of this wall, he is shown in a large image, with nine or so televisions combining to make one huge jumbo-tron type image. As this appears, you can see the individual channels changing to pieces of his picture one by one. It is unlikely that each channel was only broadcasting a piece of this image, so someone at the office must have changed the sets so they would all display the same image in this manner. As only Jeff Goldblum and Harvey Fierstein have not evacuated the office, who could have made this change?
Corrected entry: Late in the movie, there's a remark about the Belgian Airforce having been destroyed in the Sinai. The Sinai Desert is next door to Egypt - what was the Belgian Airforce doing there? They're supposed to defend European airspace, not African.
Corrected entry: When the Morse code signal is received in the Iraqi Desert, the man standing in the background is playing with his pistol the entire time. First he points it at the man across from him, then he holds down the paper with it, then in the next shot he's playing with it again.
Corrected entry: Area 51 should be deep underground. The rocks should therefore provide everybody with enough cover for large bombs and even protection from the alien's primary weapon. When Will Smith and Jeff Goldblum go out to save the world in the alien spacecraft, the door to the surface opens. The launch site has its own door to the outside world. Why is it that the base is deep underground but has a big door leading to the surface that has no protection at all?
Corrected entry: When the aliens arrive for the first time and move over Washington, the shadow of the spacecraft goes over the Washington monument, but the shadow of the Washington monument is never seen, even though the sunlight is directed at an angle where it would be very large.
Corrected entry: When the fleet of alien vessels is wiping out the army base, they fire hundreds of shots, yet we never see any of them hit the ground, except to blow up a few planes.
Corrected entry: The whole premise of the ending was based around giving the mothership a virus to take out the shields. However, given that the "electrics" had only very recently come on in the Area 51 spacecraft, there would have been no time for anybody to have reverse engineered the computer system and alien programming language, let alone for David to come in at the last minute, manage to guess off the top of his head what part of the mothership's system controlled all the shields, find a vulnerability in their code that could be exploited to switch them off, and then create the virus to do so.
Corrected entry: That alien suit is rather odd: it needs to be cut open with a razor sharp knife, then the alien is covered in a fleshy mass, however the suit is so weak an alien gets knocked out when it gets punched.
Corrected entry: There's no way the people at SETI, NASA, or anyone pointing a telescope at the moon wouldn't have spotted the mother ship long before it reached the moon. If asteroids only a few miles wide can be spotted millions of miles away from the Earth then space ship 1/4 the size of the moon are visible long before July 2.
Corrected entry: The humans are shown attacking the alien destroyers with AMRAAM air-to air missiles, which are shown both times to do virtually no damage to it. AMRAAMs are designed for fast moving air-to air targets, like the alien fighters. Yet, the humans do not see a need to fit their fighters with more powerful weapons, such as bunker busters, cluster bombs, nuclear bunker busters or tactical nukes, that would easily cripple or outright destroy the alien saucer. Instead, they resort to firing countless AMRAAMs at a 15-mile wide destroyer, which amount to pinpricks and cause needless deaths.Dom
Corrected entry: When Steve crashes his F18 head first into the canyon wall, the nose itself is intact within the fireball into which the alien fighter flies.