Continuity mistake: Rae fires a rocket at the police van, first she fires it back to front then the second time she fires it correctly only this time she is knocked back by the recoil, why wasn't she affected the first time and pushed forward? Also there should be no recoil with a rocket launch. (00:57:10)
Suggested correction: She was pushed forward against the front windshield which kept her upright whereas when firing it the right way she was thrown backward into the back seat. And rocket launchers will have some measure of recoil from the propulsion of the rocket firing out of the front of the launcher, how much depends on the time and force of the rockets being firing as every weapon has some form of recoil from firing.
Rocket launchers don't have the recoil you think. The propulsion of the rocket firing out of the front is countered by the gases expelling out the back behind the shooter. But if she was pushed forward (which she's not), her waist was above the top of the windshield, so the top of her body would should still lean over, even if it didn't cause her to topple over like she does with the seat.
Factual error: As noted elsewhere, it is simply not credible that Cindy, a trainee pilot, could land an seaplane so neatly, but it should also be pointed out that she banks into a low level formation on three helicopters - a very tricky manoeuvre, and then immediately after take off banks tightly into a high speed flyover of the squad on the beach. Both of these stunts would demand a very high level of skill from a pilot, especially one flying a lumbering old seaplane. (01:05:10 - 01:24:45)
Suggested correction: I respectfully disagree. 1. We don't know how many hours she has toward her license - average is well more than the minimum. She may have upwards of 70+, granted, probably in a 172. But watching this scene, the plane was a full 5 seconds behind the choppers. That's not formation. She banked left, straightened out, and landed. I believe a higher-time trainee very well could have done this. Now, if she had NEVER touched a multi-engine plane before, let alone a seaplane, the whole thing is off.
Continuity mistake: When Matrix first rips out the seat of Cindy's car and sits in its spot, his body sits very low to the the bottom of the car. You can even see in the next scene that his head is clearly lower than Cindy's. However, during the chase scene, his head is level with Cindy's. (00:29:55)
Continuity mistake: On Matrix and Cindy's way flying to an island to rescue his daughter, they flew west. Yet, prior to arriving at the island, the sun was seen rising. Did they travel around the world? (01:04:40)
Suggested correction: The explanation is that they simply went to far side of the island and approached it out of the west to approach a secluded spot of the island to minimize detection by an soldiers on the island allowing Matrix to infiltrate the island undetected.
Revealing mistake: The scene with the shack has many mistakes, but only if you play it in slow-mo. First, he throws the circular saw at the guy in the window, the saw is moving on wires and he has a hairpiece someone just pulls off with a wire. The next guy he stabs with a pitchfork, and Arnie just lightly stabs him and the guy falls forward holding onto the pitchfork to make it look as though he was stabbed. Arnie then throws a saw at a guy hitting him in the chest. The guy actually just catches the saw in his arms in a way to make you think he got hit. Then Arnie swings some sort of gardening tool into the genitles of a man, but he actually stops it before it hits the guy and the thug just holds onto the handle. Finally, Arnie hacks off the forearm of a another man. You can tell that his arm was fake from the elbow on. (01:15:15)
Continuity mistake: At the shopping mall when Sully does the cash exchange (in the envelope) he picks up the money and puts in his pocket, then in the open shot it's back on the table. (00:32:00)
Continuity mistake: The police van with Matrix inside pulls away from Cindy and drives for about 30 seconds including the fact that Cindy fired two rockets at it, and, yet, when it stops it is still much too close to where they began and this is even after someone misfired a rocket at them. (00:54:50)
Suggested correction: A couple of things to point out here. First, the vehicle is a police van, which is going to be slower to accelerate than a car. Not by much, but enough. Secondly, the two cops are distracted by Cindy, thinking she is a hooker and is about to flash them. "I think she's got something for us." The cops are driving slowly at this point, note the speed of the passing streets. Then when she fires the first rocket, it causes both cops to look around to see what was happening - again slowing down.
Factual error: When Matrix escapes from the landing gear of the plane, he opens a hatch to access it, but doesn't close it behind him. This would have later led to the cabin depressurizing and the plane plummeting to the ground.
Suggested correction: No, it wouldn't. The entire wheel well of an airliner is pressurised - otherwise the tyres would explode! Once the undercarriage is retracted (typically at less than 1000 feet) the pressurisation problem no longer applies. Plus, the access door opens inward (like most aircraft doors), so the pressurization would force the door shut against the frame anyway.
Wheel wells of airplanes are not pressurized. Airplane tyres are about 145PSI at ground level, and at altitude they'd be under 160PSI, nothing radical for tyre manufacture. Plus as the air temperature decreases at higher altitudes, the tyre cools and the internal pressure drops, more than compensating for the lower external pressure.
Wheel wells of airliners are always pressurised. Those stowaways who hide in the wheel wells die from hypothermia or are crushed to death by the retracting undercarriage. They do not suffocate.