At the beginning of the film we are shown an amber mine in the Dominican Republic. This amber is only 45 million years old, Hammond would never bother buying the amber from there as dinosaurs disappeared from the fossil record 65 million years ago. [Unless there is some evidence to back up your claim there is nothing to say he wouldn't buy the mine.]

When the insurance man runs into the bathroom, and is eaten by the T-Rex, why would they have bathrooms on an automated car tour where you're not supposed to open the doors anyway? Even if it were an emergency staff bathroom, it probably wouldn't have multiple stalls. [Remember, "probably" dosen't qualify as a movie mistake. It must have taken dozens of workers to construct the paddock; a double-stall toilet would be logical. Since they decided to make it a permanent toilet (instead of a porta-potty) it would make sense to leave it there for maintenance workers and park employees.]

Doctor Malcolm never gets out of the helicopter when it first lands on the island. [We see Malcolm throughout the rest of the movie, so clearly he got off the helicopter. Lots of things happen offscreen, including the characters getting *in* the helicopter in the first place.]

In the beginning, the subtitles say "Isla Nublar. 120 miles off the coast of Costa Rica." However, the correct spelling of the island is Isla Nubar. [Nope, it's the (fictional) island Isla Nublar, both in the book and film. See http://en.wikipedia.org/wiki/Isla_Nublar.]

In the last scene, the helicopter is shown out at sea, yet the intercuts of the interior show a mountainous green background close by. [The exterior shot of the helicopter leads straight to the end credits of the film and fade to black; there are no intercuts to the interior. The previous shots of the interior show trees on the right side of the helicopter while Grant sees the birds flying over the ocean from the leftside windows, indicating that the helicopter is flying along the coast of the island. We cannot see the island in the exterior shot because the shot is from the perspective of the island (from the helicopter's right side).]

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. [Submitted and listed. Its currently ranked as the second highest mistake for the movie.]

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. [The width of the inside of the trailer is hardly the length of the brachiosaur's neck (30 ft).]

In the scene where they are "rebooting" the computer system, Lex states "I know this, it's a UNIX system." The scene then cuts to a shot of the interface which is a 3D "flyover" interface. There are, at this time, no commercial UNIX systems that employ such an interface, so there was nothing on the screen to let her know what operating system that goofy interface (probably written by Nedry) was attached to. [We can't see the screen when she delivers the line, so there may have been something on the screen that identified it for her. In any case, Lex is a self-professed hacker; it's not beyond the realm of possibility that she had at some point encountered this exact system (or a similar system) during a previous visit to her grandfather.]

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. ["Not likely" doesn't preclude the possibility that it occured naturally. In any case, Hammond may have shipped birds to the island.]

Early in the movie, in the scene where the goat is presented to try and attract the T-Rex, Lex claims to be a vegetarian. Yet later in the movie, Lex is eating jelly, which contains geletin, an animal derived product, which is unsuitable for vegetarians and vegans. [Character mistake or decision - she either didn't know, or was hungry enough not to care.]

During the "Introduction Ride" when the group sees the scientists working inside the lab (right after the animated film is shown) Martin Ferrero, the ill-fated lawyer who later gets eaten, asks if the scientists are "Auto-Erotica". John Hammond replies that they are real people, that no animatronics are used. "Auto-Erotica" actually means to solo-masturbate. [How is that trivia? There is no connection to that statement to anything else in the film and observations are not trivia.]

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? [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.]

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. [At no point is Dr. Grant's hand under Timmy's head, he does not move his arm.]

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. [Ellie's shirt is not clean: it is stained with dirt and blood in both scenes.]

When Ellie starts pushing the buttons to turn the power for the fences on again, the glowing squares behind each button are red. After the last cut to Alan counting down for Tim's jump, we can see Ellie pushing the buttons, but the squares are striped. [Look closely in the wide shot of all the switches - there are 12 in total. It's possible to see that the top nine have plain surrounds but the bottom three have hatched surrounds because they are the most important - "Velociraptor Pen Fence", "T-Rex Paddock Fence" and "Perimeter Fence".]

In the scene where Alan and Lex are between the overturned truck and the T-Rex, the T-Rex hits the truck and it spins. But if you look closely the trucks spins before the T-Rex touches it. [The Explorer does not spin before the T-Rex hits it. The T-Rex uses the bridge of its nose initially then lifts its head so that the final push is with the end of its snout. Watch frame by frame and it's still spot on.]

In the end scene where they are loading Ian onto the chopper, he is bleeding and his pant leg is cut. But when they show him again, the bleeding has stopped in a matter of minutes, and his pants have magically grown a new leg. [Dr. Malcolm is not still bleeding (he would have bled to death by this point) but rather has blood-stained make-shift bandages tied around his leg. He is only shown briefly in a partial shot inside the helicopter and he has a blanket over him - his trousers have not "grown a new leg".]

In the scene where the lawyer is running to hide in the bathroom, you can see a rock sign near the bathroom. When Malcolm is running from the Tyrannosaur, the sign is gone. [The rock is there in all the shots in "The Ultimate Collection" DVD box set version, but it is only visible briefly in Dr. Malcom's shot.]

During the beginning when the gatekeeper falls when he lands on the ground you can see behind him the light on the lock is already red. In the next shot you see the locks lights going from green, to yellow, and to red again. [It looks more like a red lens flare spot than the lights on the doorway. In slow motion the red spot can be seen in front of Jophrey, which wouldn't be possible if it was the light on the door.]

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. [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.]