Jurassic Park

Corrected entry: When the doctor is showing off the piece of amber that they have gotten the DNA from, there is a problem. The mosquito in the amber is a male, as one can tell by the antennae. Because it is only the female mosquito that feeds on blood, the male should only have nectar in its stomach. To make it worse, in that species of mosquito, Toxirhynchites, both the males AND females are flower feeders, and would therefore have no blood, or dinosaur DNA in their stomachs. (00:25:00)

Correction: Can we not just assume that the mosquito in Amber in the cane is just symbolic and doesn't necessarily have to be the exact species and gender of the mosquitoes that yielded the dino blood and DNA?


Using the actual mosquito will have more meaning to Hammond than a random one. John is also shown to want only the best.

Ssiscool Premium member

I don't know. I would think that a mosquito preserved in Amber containing dinosaur blood would be exceptionally rare and probably not the kind of thing you'd waste on a cane.


Correction: Hammond's company, InGen, did not deal exclusively with dinosaurs. Dr. Ellie Sattler, the paleo-botanist, observed and mentioned that Jurassic Park was also full of ancient and extinct plant life. InGen used the same process to procure vegetable DNA from ancient insects (such as the Toxirhynchites mosquitoes) that fed on vegetable matter. It's the same process.

Charles Austin Miller

Correction: The mosquito in the amber is not one that supplied the DNA for the dinosaurs. We know this because there is no drill hole for the extraction. When the extraction process is shown, a hole several millimetres across is drilled into the amber.

Correction: Plant sap consists of water, some simple sugars, more complex carbohydrates and plant hormones. It does not contain any DNA at all.

It's about the mosquito inside the amber, not the amber itself. Anyway, plant sap most definitely contains DNA, just plant DNA. All living organisms have DNA.


Plant sap does not contain DNA. Phloem sap consists primarily of sugars, hormones, and mineral elements dissolved in water. DNA is polar due to its highly charged phosphate groups and dissolves easily in water. Transporting dissolved DNA would be utterly pointless.

Fine, the amber doesn't contain DNA (it's fossilized anyway). It's still a bad correction.


Corrected entry: Ellie locks the outside handle of the freezer with the steel pin, but somehow the second raptor gets out.

Correction: You're confusing two of the raptors here. Ellie locked one in the electrical area, but there may yet be another way out. Lex locked the one in the freezer, which is probably dead after that. There was still the third raptor there.


Corrected entry: In the scene where Sam Neill and the little boy are climbing down the tree, the car keeps crashing down a few branches at a time behind them. Why are they in such a hurry? If the car is falling in such a straight line, wouldn't it be easier to climb around to the other side of the tree, where they would be safely out of danger? (01:14:00)

Correction: If you pay attention, as they are climbing down the tree there are no branches within reach that aren't in the path of the falling truck. They would have to go out to the ends of the branches to climb around and that far away from the trunk the branches might not hold their weight. The quickest, safest way down is to outrun the falling truck.


Corrected entry: When Tim is holding onto the fence, when the power came on, it would cause his hand muscles to clench the cable.

Correction: You haven't been electrocuted before. Otherwise, you would know that a powerful electric shock will knock you backwards by several feet.

Charles Austin Miller

Depends on whether it's Direct Current, which would do as the original mistake says, or Alternating Current, which would do the second option, like the correction. Insufficient information is given to say solidly which the fence uses.


We can reasonably assume that Jurassic Park was using Alternating Current, wisely intended to repel the dinosaurs away from the fence line. If it was Direct Current, then the multi-billion-dollar menagerie of ultra-rare specimens would be fried to a crisp (or at least seriously injured) on a daily basis, as they would be unable to release the charged fences. Therefore, Alternating Current is the only fiscally-logical choice (and it explains Tim being repelled from the fence).

Charles Austin Miller

Corrected entry: Why aren't there subwayesque service tunnels all round the island to permit the staff to travel hidden from the dinosaurs/sundry other emergencies/all the other incidental occurrences that make every other undertaking on our planet use similar tunnels? Expensive and laborious, but if you have the resources to make dinosaurs, everything else is a breeze.


Correction: Despite Hammond's catchphrase of "We spared no expense", that would have been a huge expense, as underground tunnels suitable for travel are extremely costly. Also remember that Isla Nublar is a volcanic island. The ground may simply not be suitable for that kind of construction.

Greg Dwyer

Correction: Given that "Jurassic Park" was author Michael Crichton's re-imagining of his own film "Westworld" (in which a high-tech amusement park goes haywire and the guests must run for their lives), the whole point of the movie was to place humans and dinosaurs on the same deadly-dangerous playing field. Like "Westworld," this movie was a purely visual film (a graphic novel, basically) that smoothed-over lapses of logic in favor of frantic spectacle. If John Hammond had the foresight to make his Jurassic Park a hermetically-sealed, perfectly-safe environment for humans to observe and maintain dinosaurs, it would have eliminated the thrill of the movie, turning it into a National Geographic documentary.

Charles Austin Miller

But the point is the park was safe, without Nedry's sabotage things would have worked perfectly. Hammond spared no expense and it shows with the fancy security. Because of this Nedry's sabotage was put in.


The fact that Jurassic Park could be sabotaged by a computer geek is proof that it was not perfectly safe. A perfectly-safe facility would be foolproof and sabotage-proof.

Charles Austin Miller

Any place can be sabotaged, the point is that it was safe enough to receive visitors, without the sabotage the inspection would have gone smoothly. Adding tunnels or even more security wouldn't change a thing. You are just making stuff up.


Correction: They didn't think about it. They didn't need to because they felt they had the place pretty well secured. Besides it wouldn't have helped them much anyway, once the fences were down the predators could get anywhere and a lot of the predators are small enough to get inside the tunnels, the velociraptors could even open doors. Most personnel was already gone so there is no lacking in their infrastructure that would require tunnels. This could have helped Dennis Nedry escape as well. He shut the park down to create chaos and move unseen.


Corrected entry: When the velociraptor entering the park attacks the "gatekeeper," the staff use tasers to get it to stop. These tasers probably operate at a high voltage and possibly more amps. In reality, the gatekeeper and Robert Muldoon would be dead since they would've received the same shock or lower. Humans can die at 200 milliamperes (0.2 amps), which is probably what would've happened to Robert and the worker, if the velociraptor didn't kill him.


Correction: Electricity takes the shortest route to ground. That would be through the raptor and not through the gatekeeper. Additionally, you are making assumptions about the stun batons they are using.

Corrected entry: In the kitchen confrontation, the two little children are strong enough to successfully force the freezer door shut on a charging Velociraptor. Twenty seconds later, in the control room, the two adults are only barely able to hold a door shut against a charging Velociraptor.

Charles Austin Miller

Correction: There's not really a whole bunch of proof that this is valid. As we saw, the freezer floor was covered in ice, which would have negated some of the Raptor's momentum. The kids could have closed it. In the other case, there was no ice on the floor, so the Raptor had full swing.

But even so if the raptor did slip on the ice going into the door it would still send Lex and Tim flying.

Ssiscool Premium member

Corrected entry: When Alan becomes overwhelmed after seeing the movie's first dinosaur, he staggers and sits down on the ground... But as he is bending over before sitting, there are already grass stains and/or wet spots on the seat of his pants.

Correction: I've watched this scene plenty of times and there are no grass stains on his pants.

Corrected entry: A live bull is lowered in a sling to feed the raptors in the pen, but when the shredded sling is brought back up, there's no blood on it. How could they have shredded the sling without drawing blood on the bull? (00:32:40)

Correction: The sling is solid light blue with yellow stripes when it's lowered, and when it's raised the shredded blue material is quite stained, though it may not be gorily dripping in bright red blood, there are indeed dark stains (red stains on blue material change color) all over what's left of the blue material.

Super Grover Premium member

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.

Super Grover Premium member

Corrected entry: When meeting Muldoon, Dr. Grant calls Muldoon "Greg" instead of using the character's first name, which is Robert.

Correction: Actually he introduces himself and says "Alan Grant" but I agree it sounds a bit like he says Greg. Turn the volume up, you can hear it.


Corrected entry: When Muldoon prepares to shoot the raptor he unfolds his rifle butt. However the rifle is already unfolded when he and Ellie are passing the raptor pen.

Correction: Time passed between those points. It is entirely plausible that he folded his stock as he walked into the thick jungle to keep it from getting hung up on the vegetation, only to unfold it again when he has his shot lined up.

An extremely unlikely situation where by he is making it harder for Jim to defend himself.

Ssiscool Premium member

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: All of the strands of the high voltage electric fence Tim was hanging on were tied together. This means that all of the wires and Tim were at the same electrical potential. Tim wouldn't have gotten shocked. This phenomenon is referred to as "bird on the wire." Birds sit on live electrical wires all the time and do not get shocked because they are not touching the ground and therefore the electricity has no where to go. The only way for Tim to be shocked would be for him to be touching the fence and the ground simultaneously.

Correction: An electric fence designed to stop things jumping into and climbing it would have alternate rails electrified with opposite polarity, or AC current with the opposing phase, resulting in exactly this effect. So, while people often object that it doesn't act like a cattle fence, this is only because cows can't jump or climb, and cow-fences are typically a single rail.

Corrected entry: 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.

Correction: The 3D browser shown in the movie is actually from a real UNIX interface called IRIX. It's referred to as the FSN (File System Navigator) and it actually looks just like that.

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?

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

Corrected entry: Dr. Grant holds his canteen out the window in order to get water to drink. But there is no funnel on it. It would take a very, very long time for rain to drop through that small hole to fill the bottle with any drinkable quantity of water, even in the heaviest of rains.

Jacob La Cour

Correction: And yet in the heaviest of rain I can get a decent drink by holding a water bottle with roughly the same size hole. I've done this dozens of time on long driving trips.


Corrected entry: Nedry has supposedly worked on the island for years. It is very implausible that he would need a street sign to tell him which way to get from the control center to the East Dock.

Jacob La Cour

Correction: It was raining heavily and Nedry could barely see out the front window. In his desperate and panicking state, it's easy to think that he got lost down some road he had never been on. It's not like he spent all his time on Jurassic Park studying the roads.

Gavin Jackson

Corrected entry: Even though the film is titled "Jurassic Park", the only dinosaur depicted from the "Jurassic" period was the Brachiosaurus. The T-Rex, Triceratops, Velociraptor, ect were all actually from the "Cretaceous" period which was later. This occurred throughout the whole trilogy.


Correction: So what? Maybe it just sounds better.

Jurassic Park mistake picture

Continuity mistake: When Tim and Lex first arrive, Lex is wearing a purple tank top with a colorful design, and in the following scenes or even between consecutive shots her tank top changes to completely different designs, though it's the same style of tank top.

Super Grover Premium member
More mistakes in Jurassic Park

John Hammond: All major theme parks have had delays. When they opened Disneyland in 1956, nothing worked, nothing.
Ian Malcolm: But, John, if the Pirates of the Caribbean breaks down, the pirates don't eat the tourists.

More quotes from Jurassic Park

Trivia: To make the water in the glass on the dashboard 'jump', they strung a guitar string from the underside of the dashboard to a bolt on the floor and then plucked the string.

More trivia for Jurassic Park

Join the mailing list

Separate from membership, this is to get updates about mistakes in recent releases. Addresses are not passed on to any third party, and are used solely for direct communication from this site. You can unsubscribe at any time.

Check out the mistake & trivia books, on Kindle and in paperback.