Corrected entry: While Steve and David are trying to escape the mother ship, they are approaching the ship's outer doors that are about to close. David keeps saying, "Must go faster, must go faster", then it shows Steve with his arms extended as if he is pushing the controls forward trying to make the craft go faster. The problem with this is that when they first tried to take off from Area 51, the controls were such that pulling back on them made the craft go forward, and pushing them forward made it go in reverse. But Steve was not pulling the controls back toward him when they were escaping.
Corrected entry: When the aliens are coming in to New York, there is a shot of people starting to run in the other direction, from where the ship is coming in. The cop on horseback turns the horse around to flee, and in the next shot from the side of the street, the cop turns his horse around again.
Corrected entry: Why do they attack the ships only with F/A-18s? They could fire a lot more warheads from submarines, destroyers and so on. (00:58:55)
Corrected entry: Goldblum makes an assumption when creating his computer virus (in the complex alien language, no less) that the aliens would not have any kind of anti-virus software or other security measures embedded in their obviously highly classified control system software. Ridiculously improbable. He has no fallback plan, either.
Corrected entry: When Russell Casse stands up to talk about his flight experience and says that he was taken by aliens 10 years before, everyone reacts with tired groans. Well we know there are aliens, so why would they not believe him? He makes specific claims that can be easily verified simply by looking at what is going on in the world. Given the desperate situation humanity is in they would definitely want to talk to him to see what they can find out about the attacking aliens. (01:43:55)
Corrected entry: In the scene where Jasmine retreats from the attack in the maintenance room, she backs into a concrete wall. However, the whole "wall" shakes as she backs into it. (00:49:45)
Corrected entry: As LA is destroyed, you see Jasmine sitting in her car. As she turns around in her seat to see the fire ball coming at her, you see the entrance to the tunnel is an arch. As she runs through the tunnel, the ground is level. But the morning after, she has to climb up to get back out of the tunnel entrance, which is now a complete circle. It looks as if she's coming out of a large drain pipe. (00:48:55 - 00:52:30)
Corrected entry: Early in the film, after the arrival of the alien spacecraft, President Whitmore indicates that, "We may need to upgrade to Defcon 3" in light of the worsening situation. The Defcon scale is lowered in response to a more threatening situation, and would therefore require a "downgrade to Defcon 3."
Corrected entry: When David and Steven break the Earth's atmosphere, there is no sign of the mother ship despite heading straight towards it in the next shot. (01:57:30)
Corrected entry: In the scene where Jimmy and Steve are being chased by 2 alien spacecraft, Jimmy says he is going to "try something", after which he makes a drastic high speed left turn away from Steve's plane. The G forces are so great, Jimmy can't breathe so he takes off his oxygen mask. Steve immediately yells, "Put your mask back on!", but how would he have known he removed his mask if he had already banked away from him and he couldn't actually see him?
Corrected entry: Will Smith's mustache is out of limits for military standards. The standard is that a mustache shall not extend lower than the top of the upper lip or past a vertical line drawn upward from the corner of the mouth. He's good on the first part, but out of regs on the second. (00:21:00)
Corrected entry: In the scene where David shows everyone how he can penetrate the fortress, he specifically says the only way to disable the shields in all the ships is to detonate a bomb in the mothership (he says it quickly towards the end of his little speech so pay attention) - But the shields go down way before they detonate the bomb, the shields go down as soon as they upload the virus.
Corrected entry: At the end Steven and David are flying out of the mothership and they barely make it out. Hence the spaceships that are following them blow up because they hit the wall. Thats the problem, it's in space. In order to have fire you must have oxygen. In space there is no oxygen. Therefore there could not have been a fire when the ships crashed. (02:20:10)
Corrected entry: When Jasmine arrives at his destroyed airbase she stands at a fence outside the military area. She is filmed from inside but you can read a sign "Restricted Area" fixed to the fence. So the restricted area must be the whole world for the soldiers inside the airbase. (01:17:50)
Corrected entry: The scene when the kids are in the trailer watching TV and the ship is approaching, everything in the trailer is shaking intensely. 3 seconds later, they come out to see what's going on and you can see the ropes that are tied to the awning are not moving at all. (00:21:40)
Corrected entry: When the spaceships are destroyed at the end and everyone is cheering, one of the ships in seen crashed behind the pyramids. If the spaceship had crashed in that spot it would have flattened Cairo. (It's easy to tell this looking at the configuration of the pyramids).
Corrected entry: Jeff Goldblum tells Harvey Fierstein that there will be six hours until the countdown ends. There is no way that he could have left his office, gone on bicycle to his father's house and driven as slowly as they were from New York to DC with time to spare before the countdown ended. The drive alone is a minimum of 4.5 hours with no congestion, averaging 70mph. They were going considerably more slowly. (00:26:55 - 00:37:00)