Plot hole: Throughout the entire movie, barns, houses, cars, 18-wheelers, etc. are demolished and lifted into the air like they were made of paper. And yet Jo and Bill pass through one tornado after another with nothing more than their hair getting messed up a little. You'd think the debris alone flying into their faces at 100 miles an hour would be enough to give them a few injuries.
Plot hole: In the air vent, we see a rat. Wouldn't rats in the vents set off the alarms on a regular basis, because the lasers were on the upper side of the vent?
Plot hole: Sgt Monfriez would have never been on a medevac helicopter with an automatic weapon. I served several years in U.S Army Medical units and they are allowed defensive weaponry only, medical units are not ever issued automatic weapons period. The plot says the Monfriez is from another unit and is asked to accompany the medevac but that would never happen; it is against the law of land warfare to put an automatic weapon on any type of ambulance vehicle.
Plot hole: Slater decides to render the nuke inert by punching in the wrong code three times. However, when he does this, the nuke becomes armed, and Travolta reveals that he is one step ahead by having used a special kind of circuit board to produce this result. Two questions: One, once Slater has armed one nuke, why not arm them all? You've got nothing to lose, and you can keep Travolta from getting them for whatever evil purpose he has in mind. Slater plans to send them all to the bottom of the copper mine anyway, so just arm them all. Two, Travolta later arms a nuke himself, and then smashes the keypad with his gun. Well, if you can do that, why doesn't Slater just smash all the keypads as soon as he gets the nukes? Travolta would be defeated; movie over.
Plot hole: How would Arnold know about the cop hitting the bus when he was running away from him during the parade? He was far past him at that point.
Plot hole: There's absolutely no reason why Kruger had to page Lee from the plane after he'd been drugged. The bad guys had no idea where Lee was until he did that and they traced the phone call. Not only did Kruger give away Lee's location, but he also gave away the only thing keeping the bad guys from killing him.
Plot hole: When Cage is hiding the VX gas balls at the end by putting them in a drain you can see he is holding the loose ball, but then in an instant cut picks it up along with the chip.
Plot hole: If the dinosaurs are so dangerous, why are they only kept behind plastic sheeting at the back of the truck, rather than in cages? There are computers in the truck, so obviously people must go in there, and it wouldn't be very safe to use computers if dinosaurs were roaming free in the trucks.
Plot hole: When Peyton/Darkman is showing Bridget how the liquid skin works, he drips a small amount onto his burnt finger, and it solidifies. However, when he drops it onto his finger, it magically shapes itself into a replica of a perfect, undamaged finger. This makes no sense, as it is simply a liquid and is not being molded by any forces. Hence, it should not look like a perfect finger.
Plot hole: When Seth's piledriver gives out during the climactic fight, there are many vampires in the background politely keeping their distance while he tries to restart it. Similarly, they ignore him while both his hands are occupied with Sex Machine's whip, even though vampires are running around behind him to no apparent goal. (01:31:35)
Plot hole: If the president thinks it's so important that the Martians comes to the Congress to present their excuses, why didn't they bring the translating machine? (00:52:35)
Suggested correction: Because, as has been demonstrated, the "translating" machine is about as much use as t*ts on a tomcat.
Plot hole: The main accident is a crash involving toxic waste, which seals the tunnel, yet no one has any trouble breathing, or even has so much as irritated eyes.
Plot hole: The entire movie is a major plot hole. It's revealed early that Naji Hassan himself organized Jaffa's capture and so it follows that Hassan has no interest in the latter's release. With the nerve gas already smuggled on board the plane and the willingly suicidal Demou in place, the hijack was totally unnecessary. Demou could have set off the bomb as the plane came into land. Rather than draw attention by the hijack, Hassan could've stayed behind and made propaganda from a safe place minutes before.
Plot hole: When Tom Berenger is talking about Vietnam, the school bell rings and everyone leaves class. After everyone leaves, Tom Berenger puts the ice pick in his overcoat and quickly picks up his briefcase and opens it. Around 10 to 20 seconds after the bell rang, he looks at the portable surveillance in the briefcase. He flips through all the cameras. How did the entire school clear out with no one in site from the time the bell rang? Are there not usually some people around in the hallways after school?
Plot hole: When they rescue the boy he is with Gary Sinese. Surely the boy could hear his voice and tip off authorities he was one of the bad guys? Yet later in the movie when Sinese comes by the home for his reward, he hears Sinese's voice and recognizes it.
Plot hole: Malloy and the others tell Snake that the Plutoxin 7 virus would cause nervous system shutdown without the antivirus. When he got back, it was revealed that it was just a hard hitting case of the flu. Why then did, at the base, the computer showing his countdown timer over the course of the film say when nervous system shutdown, not the full extent of the flu, would occur. Maybe for sake of the audience to avoid a spoiler, but those who had already seen the movie would notice this.
Suggested correction: Because the countdown timer was lying to him as well. It was programmed to do so.
Plot hole: When Picard, Hawk and Worf are out on the particle transmitter, they each have one gun. However, when Picard is attacked by Hawk, the gun that Hawk used is being stepped on by him. Picard left his gun over at the other mag lock, and Worf threw his away, but when the captain was in trouble, Worf had a gun. He would not have had time to run around to Picard's side before he was attacked by Hawk, so where did Worf get the other gun from?
Suggested correction: As you can see in a wide shot after Worf's suit is cut, his gun is still hanging close by. So after he closed the gap in his suit he just grabbed his own gun. Of course, he did throw it away and it should have kept on moving all the way out of reach but something stopped it. But you do see it still in reach of Worf.
Plot hole: When Earl, Grady, Burt and Kate are running from the truck that Burt shot, they go towards the cantina, which has a couple of smaller blue and white structures beside it. In a wide shot as they're running, we see the 1st shed at the side of the frame. A moment later Earl sees several walking Graboids in front of the 2nd shed. The beasts were in plain sight, yet nobody noticed until they were almost on top of them. (01:14:50)
Plot hole: In the beginning after Flint buries the treasure, he kills all the men that are with him. The pistols he has are one-shot pistols, so there's no way he could kill 14 men using only two one-shot pistols.