Plot hole: How did the men on the ship get killed? The bridge was intact and the T-Rex was still inside the cargo hold. [A raptor escapes from the boat when it pulls in to the harbour, but they cut the scene from the film and now that bit doesn't appear to make any sense.]

Other: When they're on the island and the INGen helicopters are flying in, Jeff Goldblum takes the binoculars and looks through the wrong end.

Factual error: When the vehicle is hanging off the cliff and the glass at the rear slowly begins to crack, it does so like sheet ice (or conventional window glass). Safety glass in vehicles would either be laminated (in which case it wouldn't shatter at all), or it would break into a million fragments...

Visible crew/equipment: When Sarah and Nick return to the trailer with the baby T-rex, there is a shot of Nick carrying the rex towards the operating table. Look between the baby rex's legs - there are a series of wires leading from a opening in the anamatronic dinosaurs belly to a bulky device (presumably a battery pack) in the actor's pocket. Once you know where to look for the wires, you will notice them in many other shots in the film when various actors are holding the baby rex.

Visible crew/equipment: When the T-Rex is running rampant in the streets, we see a guy running away from it. He tries to run into a video store, and the shot is from inside the video store. Right before that guy gets eaten by the Rex, he runs to the door to try to open it. And when this happens, you can see the reflection of the cameraman in the glass on the door walking towards it.

Plot hole: Near the end of the movie, Peter Ludlow (the snivelling nephew of John Hammond who wants to create Jurassic Park in San Diego) is addressing company stockholders as they wait for the cargo ship to arrive. He says something to the effect of: "I'd like to thank you all for being intrepid enough to show up in the wee small hours of the morning." Those last six words, and the color of the sky make it seem like it is four or five in the morning at the latest. For that early, San Diego is a busy town. The busses are running, business men are out, video rental stores are open (and with plenty of customers), and generally a lot of people are out to run away from the T-Rex. I have to imagine that the mass of people running in terror (even though it is early in the morning) were put in as an homage to old monster movies. Same thing could be said for the Japanese business men.

Deliberate "mistake": After Peter falls down the slope, the next few camera shots are 1st person views of the small dinosaurs which are about to attack him. The 1st shot ends a short distance from his face, at the speed which the camera zoomed in, during the 2nd shot the 1st dinosaur should have reached him. Likewise, during the 3rd shot, both the 1st and 2nd dinosaurs should have reached him, but they have not. They only reach him during the overhead camera shot.

Continuity: Near the end of the film, when Drs. Malcom and Harding are looking for the baby T. Rex in San Diego they arrive at the new InGen Jurassic Park. The car brakes hard, skids a little pulling a trailing cable for a portable light. the lamp falls. When they get back into the car with the baby T. Rex, to use it to entice the mother back to the ship, the lamp is standing again.

Revealing: In the scene where the stegosaurus begin to move around a lot, you can see the one that is charging at her steps in the creek water, but there is no splash or any ripples.

Continuity: In the scene where Sarah is hanging from the roof surrounded by 'raptors, the position of the roof tiles she's holding on to change between shots.

Continuity: When the English family arrives at the island, the sky is a bit gray. When the little girl wanders off, it is suddenly a sunny, beautiful day.

Continuity: In the scene where Sarah is helping the baby T-rex in the trailer and Ian is trying to dial up their ship on the radio, look at the papers Ian is holding. In one shot the back page is white, but in the very next shot, it has a red cover on the back.

Audio problem: The ship is going at full speed towards the coast - making a roaring engine sound. But when it hits the coast and stops, the sound of the engines stop too. Who turned them off?

Continuity: The night when the T-Rexes attack it is pouring and there is mud all over, but the next morning the grass is dry and not even in the forest is there any mud or rain puddles.

Continuity: The day after the T-Rex attack, when they are all walking towards the control complex, Sarah is asked about the blood on her shirt, and answers that it's from last night, but it's too humid for the blood to dry. Nevertheless all their clothes - which aught to have been soaked during the rain storm, are completely dry.

Continuity: When they're in the shack, and the raptors are making the walls shake, something like an animal's muzzle falls off the wall and lands in front of the door. We then see a closeup of the raptors starting to dig under the door, and there's no sign of the muzzle. We then cut back to a wider shot of the door, and the muzzle's back there again.

Revealing: The window in the door of the trailer that got pushed over the cliff is quite obviously made of a plastic film. You can see that it is wobbling when they bang the door.

Visible crew/equipment: When Ian is talking to John in the bedroom you can see a mirror. After John tells him about the project, the camera moves to the bed and there is a reflection of blue jeans, probably the cameraman's.

Factual error: When the first half of the trailer is hanging over the cliff, the second half is pulled towards the edge. But the pull from the first half would be going downwards - in a 90-degree angle to the position of the first half. That would not pull the second half outwards, but more lift the end up - or most likely - not pull it anywhere.

Continuity: As the team are making their way through the long grass and are attacked by the Raptors we see a black man holding a torch turn around and look up into the air and scream. The camera changes and then the Raptor jumps in the air and on to him. He looked up into the air before there was anything in the air to look at.