Continuity: When Tim, Lex and Dr. Grant are hiding in a large tree, a large dinosaur appears. They pull some branches off the tree and feed the dinosaur. However, when they first climb the tree, there is no foliage in the area at all.

Continuity: When Nedry opens the first gate, the big one that the explorers entered, the jeep he is driving has a long, thin antenna on it that is waving about, and is standing up straight. At the next gate, it is tied down, and looks semicircular. Nedry wouldn't have spent time tying it down since he had to get to the docks.

Visible crew/equipment: In the kitchen scene, when the raptor appears in the small window. You can see movement (possibly a reflection of a camera person's arm) on the surface of the door, right below the window.

Continuity: In the T-Rex attack, once the car has flipped and the T-Rex is turning it round, it pushes it a full 180 degrees to end up beside the wall, then next shot and the T-Rex pushes it more to end up in the same place.

Revealing: In the scene where Grant is trying to save the two grandchildren in the over-turned Jeep, the T-Rex returns and surprises them. Grant holds the girl and tells her not to move. The Rex then starts smelling around and blows Grant's hat off. Well if you watch closely, you can see that the air that blows Grant's hat off doesn't come from the T-Rex, it comes from something under the Rex.

Continuity: In the scene where Nedry gets lost at night, he crashes into a mud bank on the front end of his Jeep. When we get a shot of Nedry getting out of the car, he looks to see what stopped him. The obstacle has changed to a log caught on the back tyres. No more mud bank.

Revealing: When the T-rex is attacking the jeep and he has turned it over, the camera pans round behind the T-rex and you see through its legs, the ground all around the base of the beast is DRY but it's been pouring with rain for a while.

Continuity: When entering the visitor centre, Ian goes from the side of Hammond to the back of all the characters without a chance to move, in a single shot.

Revealing: During the scene where Dr. Grant and the children are forced to climb a fence to flee from an unseen dino, there's a brief side view of the fence that clearly shows that it isn't continuous - it is probably only about 75 feet wide.

Revealing: In the scene where the two kids are eating the food just before the raptors try to attack them, the little boy's hair is all messy and strands of it are sticking out. In the next scene, when the kids run into the kitchen and hide behind the counter, his hair is perfectly straight and combed.

Audio problem: In the scene at the end when they're in the ceiling then the raptor hits the roof top so it breaks and Lex almost fell to the ground. Well she's always screaming but look closely at the very moment when she falls, her lips doesn't fit at all.

Continuity: When they are on the dinosaur's bones, one of the cords attached to the section that Lex is on comes out. The bone starts to fall and (for a fraction of a second) you can see that Lex lets go of it but in the next shot she is hanging on again.

Visible crew/equipment: When Lex & Tim are hiding from the two raptors in the kitchen, a ladle (a soup spoon) by Tim's head falls to the floor and attracts the attention of the raptors. If you watch the top of the ladle right before it falls, from the right you can clearly see the shadow of the device that causes it to turn and fall.

Continuity: When Grant is taking the two children back to the visitor center ("Big Tim, the human piece of toast") Tim's ear is perfectly clean. In the next scene, the children are eating cake when suddenly a raptor's shadow appears on the wall; Tim's ear is covered with blood. Next scene with the hide-and-seek with the raptors in the kitchen you can see the same ear several times and it is perfectly clean.

Continuity: When the T-Rex is approaching, the lawyer runs into the bathroom stall and the roll of toilet paper is mounted horizontally. After Ian runs towards the bathroom away from the T-rex, in the shot of the panicked lawyer as he shuts the door the toilet paper is now mounted vertically, but when the T-Rex knocks down the stall walls, leaving the lawyer sitting out in the open, it is again mounted horizontally.

Revealing: When Lex and Tim are playing hide and seek with the Raptors in the kitchen, when the camera cuts to a wide shot of the Raptors walking in from a distance, the Raptor on the left looks directly at Tim while he crawls by, but then looks back in the direction it was going.

Continuity: In the scene where Grant and the two kids start running from the Gallimimus you see a shot of them running toward the camera with the dinosaurs running around and ahead of them. In the next shot they are running away from the camera and there are no dinosaurs in front of them. There were a lot of dinosaurs in front of them, where did they all go?

Continuity: At the site of the T-Rex attack, Ellie and Muldoon help the injured Dr. Malcolm into the back of the Jeep, before Ellie goes looking for the other Explorer. Muldoon hears the T-Rex approaching and shouts "Ellie, come on!" but Ellie spots the Explorer over the wall and (in the next shot) she and Muldoon (heard but unseen except for his torch beam) have left Dr. Malcolm alone, somehow descended the high wall, and are running up to the wrecked Explorer. There is no implied time gap between the shots as they could hear the T-Rex was approaching before they did (or did not) descend the wall and later the T-Rex is almost at the Jeep (now in a different location) and Dr. Malcolm is urgently calling them back.

Revealing: In the t-rex scene where it is attacking the kids in the car, in the shot where it stands on top of the car, the metal begins to buckle in the next shot inside the car. When it starts to sink, the metal isn't buckled and you can see the car sinking into the mud pit.

Revealing: When Tim is shocked off the fence as the power comes back on, the sparking effects are not where his hands are touching the wire but several inches away.