Corrected entry: In the initial scene where Ellie rushes from the emergency bunker to the underground power station, she must first open the door before slamming it closed behind her. Shortly thereafter (immediately after throwing the breakers and restoring power to the park) a velociraptor attacks her and she must flee to escape the bunker. If a raptor had pursued Sam Jackson into the same underground bunker, then why was the initial door that Ellie had to enter closed? Are we to believe that the raptor politely closed the door behind it before continuing its pursuit of Sam Jackson?
Corrected entry: At the closing scene on the helicopter, it is very quiet. But helicopters in operation are very noisy.
Corrected entry: In the scene when the characters are having dinner, just after the first waiter delivers the food to the table, you can see the second waiter in the top left corner waiting for his cue to deliver the food to the table. You see him waiting a few seconds for the other waiter to return and then he comes into shot completely, with the plate. (00:33:00)
Corrected entry: If you listen carefully, you can hear some common Costa Rican birds, including a keel-billed toucan and a three-wattled bellbird. Since it was filmed in Hawaii, they must have taken the time to add a soundtrack of Costa Rican birds. Unfortunately, these birds would not likely be found on an island that far off the coast. The bellbird in particular occurs only at mid-elevations in the Costa Rican mountains. These birds are not on Cocos Island, 340 miles off the Pacific Coast of Costa Rica. Cocos is considered the inspiration for the fictitious island in the movie. Since Cocos is uninhabited, and visits are strictly restricted, a soundtrack from there would have been extremely difficult to get. The fact that they went so far as to add a Costa Rican soundtrack is pretty impressive.
Correction: "Not likely" doesn't preclude the possibility that it occured naturally. In any case, Hammond may have shipped birds to the island.
Corrected entry: Right towards the end of the film just after Lex manages to reboot the security system the raptor breaks through the glass into the control room. Dr Grant shoots three times whilst he's on the phone to Hammond. There are threes holes in the glass but the subsequent shot of the gun shows it is a shot gun, not a rifle (the red shotgun cartridges can be seen) which would make many holes, not one for each shot. Even using the choke on the end of the barrel there would still be many holes and a single bore shotgun is basically a musket so there would have to be more than one hole for each shot of the gun.
Correction: He was using rifled slugs, not shot shells. A rifled slug is a single projectile that would only leave a single hole. The shell casing that is ejected when using rifled slugs is identical in appearance to the shell casings seen when buckshot or birdshot is used.
Correction: They just zoomed in on some of the holes caused by the shells. 12-ga slugs wouldn't make holes that small, and 4 shots wouldn't make 3 holes that clean.
Corrected entry: In order to open a park like that to the public (and obviously it's close to the opening date) Hammond would have to convince more people than just his investors. In reality, the park would have to pass a security review, and those auditors would definitely ask questions like "What happens in case of a catastrophic computer failure?" Something tells me the answer "All the fences turn off and you have to run across the compound to turn them back on manually" wouldn't sit too well with them.
Correction: We don't know that Hammond is not going to do that. Having to convince the investors is just the first step. Without financing, nothing else matters because the park will never open.
The park is all but finished. You convince investors at the beginning, inspectors at the end. Convincing investors after the fact is just not how it works. Thinking about what the security inspectors will ask at the end is equally bad practice, although I have seen it done that way, if not quite at that scale.
The whole manual reboot had to be done because Dennis Nedry locked them out of the system, so they had to do a hard reboot. Dennis Nedry's virus and meddling also shut the fences down intentionally. In practice the reboot would be done with more time on their hands and someone at the compound ready to reboot quickly enough that all fences go back online in time. In this situation however, they didn't have those luxuries. No system can be fully made failsafe from industrial sabotage or hacking.
Corrected entry: When Dennis gets back in the car after the dilophosaurus spits at him, he turns to see the dinosaur in the car with him. But how did it get in? The door was closed.
Correction: He left the jeep door open when he went to attempt to attach the Jeep's winch. This allowed one of the dilos to enter the Jeep. He conked his head on the door frame of the jeep, being blinded by the dilophosaur venom. After being blinded he couldn't exactly see the other dilo in the Jeep, which made him easy prey. The scene with the hissing in the plants is supposed to be a hint that there are more of them.
Corrected entry: At the end of the film, they are in the helicopter and in the air, you see a shot of inside the helicopter. Outside the opposite window is land, then when the shot changes to view the large birds, they are flying above water. Inside is always land, outside is always water. Then when the camera pans out to view the helicopter fly away, it is above the ocean with no land in sight.
Correction: When they're all in the chopper at the end, the pilot's flying parallel to the island's coastline, with the island to one side and water at the other side. In the interior shots from the passenger cabin, whenever the camera faces the starboard window (behind the chopper pilot) the island vegetation is seen, and when Ellie and Alan look out the port side window we see the water. Then the last exterior shot is of the chopper as it flies out to the open waters, with the island already behind them. Nothing inconsistent about any of these shots.
Corrected entry: During the external shot of Nedry getting attacked by the dilophosaurus, there is a clear reflection of stage lights near the jeep's front left wheel. (01:11:15)
Correction: The reflection is not a reflection of theatrical lighting, rather the lens glare from the roof mounted fog lights on the jeep. A Motion picture bank of lights did not have 4 square lamps back in the day. They were either 9 or 16 round lamps.
Corrected entry: Before the T-Rex chases Ellie, Robert and Malcolm in the jeep, we see Ellie get in the passenger side of the jeep, and Robert get in the driver's side. Over the course of the chase scene, Robert and Ellie switch seats.
Correction: Where exactly? On my version of the movie, Muldoon is always the one driving the Jeep.
Corrected entry: In the scene where Gennaro is about to be eaten, when the T.Rex knocks over the bathroom walls, you can see that the bathroom tissue dispensers on the wall behind Gennaro are painted images on the wall and not actual dispensers. It is clear once the wall has fallen that the dispensers have no depth and are two dimensional images. (01:02:00 - 01:03:00)
Correction: In actuality, the collapsing walls don't exist at all, but are CGI. But as to your specific mistake: Toilet tissue is not usually placed behind the toilet seat. In fact, you see the real tissue dispenser by Genarro's knee just before the walls collapse. The dispensers in the back are for the toilet seat covers, which are not very thick, hence the lack of depth.
Corrected entry: As Dr. Grant arrives at the Velociraptor paddock just before the feeding, there is no cow to be seen anywhere in the wide shot. Two cuts later there is suddenly a cow there lifted up by a crane. (00:27:25)
Correction: In the opening scene, you see that there is a section behind the Velociraptor paddock, which is obscured in this scene. The cow came from behind there.
Corrected entry: In the scene where Hammond is sitting at the long table and eating ice cream, Ellie comes in and sits at the opposite end. All of the ice cream barrels are near him. When a scene cuts to Ellie, there is an ice cream container near her and towards the end of the scene she gets some ice cream. At the end of the scene, the shot shows both of them and the table and there is no ice cream within Ellie's reach. (01:21:50 - 01:24:55)
Correction: There is never a container near Ellie. The closest one is a small container sitting about halfway down the table from her. She simply reaches across the table for the spoon when it comes time for her to eat some.
Corrected entry: When the tour trucks enter the T-Rex paddock, the electrified fence is missing an entire section, from the tunnel they exit to the first section of fence.
Correction: The fence is only needed in the areas where the animals might escape its paddock. But this end of the paddock also has a huge concrete wall (the one we see Grant and the kids climb down to escape the T-Rex) that the T-Rex could never scale, so the fencing is unnecessary.
Corrected entry: Ellie finds the upturned car that Timmy had been stuck in, but how did she get down there? It's down an almost vertical ledge. Not only that but she got from the bottom to the top incredibly quickly.
Corrected entry: During the T-rex attack scene, it comes through the now non-electrified fence to get to the Ford Explorers. However when the T-Rex is pushing the Explorer over the wall, there is now a 50+ foot dropoff it would have had to climb.
Corrected entry: In the scene at the badlands, when Hammond's chopper has landed and Grant goes to the trailer and opens the door, the trailer looks to be around 8 feet (three meters) wide. But switch to an interior shot and it is suddenly more like 30 feet (ten meters) wide.
Correction: The width of the inside of the trailer is hardly the length of the brachiosaur's neck (30 ft).
Corrected entry: The Dilophosaurus spits on Nedry's chest and he slaps it with his hand. Why does his hand not get burned like his chest supposedly was? (01:10:40)
Correction: Watch the scene again. Nedry's chest was not burned. He reacts in disgust to being spit on the chest and body, not pain. The dilophosaurus saliva burns the eyes, not the skin, and Nedry is physically fine until he is hit in the face.
Corrected entry: In the helicopter when they are leaving the island, Timmy is sleeping on Dr. Grant. In the first shot we see that Grant's hand is underneath Timmy's head. The camera moves to Ellie and then back to Grant where we see that Grant's arm is around Timmy. He would not have been able to move it so quickly without waking Timmy up. (01:54:05)
Correction: At no point is Dr. Grant's hand under Timmy's head, he does not move his arm.
Corrected entry: Near the end, as Ellie falls off the dinosaur's bones, she is all covered with dirt, but when she is in the helicopter, she is clean. (01:51:45 - 01:53:25)
Correction: Ellie's shirt is not clean: it is stained with dirt and blood in both scenes.
Correction: You assume only a single possible scenario. But we don't know that Dr. Arnold (Samuel Jackson) was pursued into the bunker by the raptor. The raptor may have already been down there to begin with when he came in. A careless park employee left the door open or the raptor opened the door itself are just two ways a raptor could have gotten in there. Even in your assumed scenario, the door could have shut any number of ways: Perhaps another of the raptors was with the first (they are pack hunters) and accidentally slammed the door shut and never figured out how to open it. Or perhaps a residual wind from the storm slammed it shut.
JC Fernandez