Continuity mistake: When Sarah gets those cuts on her head, they seem to dissappear or get smaller in number as the movie progresses. (01:03:15 - 01:18:05)
Continuity mistake: When Sarah, Malcom and his daughter argue in the trailer for the first time you can see out of the back window. It shows they are right in front of a thicket of trees a few feet behind the trailer. When they step outside a minute later to see the InGen choppers arrive you see that the trailer is pulled up on the cliff tops already. The only view you should have seen out of that window was open sky as the window points out to sea. (00:32:10)
Continuity mistake: The cracks in the rear window of the lab truck when it's hanging over the side of the cliff seem to vary between the shots outside underneath vs shots inside as to where they are in the glass. There is a major one above (not underneath) Sarah's hand that's visible from inside and not from underneath.
Continuity mistake: Towards the beginning where the girl goes to photograph the Stegosaurus, the scene cuts back to her boyfriend and the guy with the video camera. In two cuts to their scene while the girl is photographing and interacting with Stegosaurus, the guy with the video camera opens the flip out LCD on the video camera and starts shooting the action. (00:24:50)
Continuity mistake: When the movie starts and the little girl is surrounded by mini dinosaurs, her father lowers his Financial Times newspaper twice. First in the closeup he lowers it to his lap, and then at the start of the next wideshot the newspaper is back up in front of his face when he lowers it again before it drops onto the sand. (00:02:40)
Continuity mistake: When Stark is separated from the group and is attacked by the tiny dinos, his last desperate attempt at escape shows him going down a small stream, then over a log, where he falls and is killed. In the next shot, we are looking at the same log from the other side and bloody water is moving down stream with Stark's body on the other side. He can't be on both sides of the log at the same time.
Continuity mistake: The tent scene in which Sarah and Kelly are sleeping, wrappers from cookies or food are in the first shot. When the angle changes the wrappers are gone, but Sarah hides the reappearance of the wrappers in the next shot. (01:18:50)
Continuity mistake: When we first see the remote for the cargo hold doors in the dead man's hand, the cord goes to the viewer's left and loops under itself. In the next shot the cord is going to the right and next to the ground so it can't loop under itself. In the next shot, the position changes again.
Continuity mistake: When Sarah screams in the camper when the T-Rex is by the window, she leans against the metal post with her back flat against it. We see a shot from outside and she's still screaming but doesn't move. The shot goes back to her in the camper and now her back is against the corner of the post.
Continuity mistake: When Dieter Stark is about to taze the dinosaur, the guy with the long beard approaches him, telling him what it is. As the bearded man says "They're presumed to be scavengers, like jackals", Stark's taser is closed mostly inwards. In the next shot, the taser is suddenly extended, opened out.