Continuity: When Nash is pulled out of the airplane, he is pulled out by one leg. He is swung around for a few seconds by the leg, and then dropped to the ground. He drags himself for a couple seconds, and then gets on his hands and knees and tries crawling away. Both legs are perfectly fine, with no cuts or anything. How can he be on both knees if one of his legs was in the clamping jaws of the Spinosaurus?

Deliberate "mistake": When Amanda is viewing the large tubes, the camera pans a large distance, showing us that there isn't anything behind the tubes, especially something the size of a Raptor.

Deliberate "mistake": Nothing could be seen through the green liquid in the large glass tubes, so how come the Raptor's head could be seen so easily?

Continuity: In the diner, when Mr. Kirby is bribing Dr. Grant, after he says "We'd love to make a contribution to your research here" Dr. Grant lowers his glass to the table. In the following shot he does it again.

Continuity: When Dr. Grant first picks up the bottle of T-Rex urine it is empty, in the next shot of it there is obviously fluid inside.

Revealing: In the scene where the Spinosaurus is attacking the plane (specifically, the part where it's rolling the plane along the ground), there's a shot in which the plane rolls over the camera, and we see Grant through the window, screaming. At the very end of that shot, the plane rolls completely over and past the camera, and we can see the rest of the clearing behind it...and the Spinosaurus is nowhere to be seen.

Other: Just after the crashed plane has been kicked by the Spinosaurus and stopped rolling, we see the Spinosaurus going towards the plane through a window. The Spinosaurus is not bending its head low in the shot, but its head is too high off the ground when it stands for this shot to be physically possible.

Continuity: In the scene where Dr. Grant and the others walk in on the feeding T-Rex, his mouth is slathered in blood. But when the T-Rex is battling the Spinosaurus, its mouth is clean.

Revealing: In the beginning of the movie where Billy and his female palaeontologist co-worker are working on a Raptor fossil you see him lean on the ground to brush some dirt away. As he leans on the supposedly hard rock you see it give a little, like it was Plaster-of-Paris on top of plywood.

Continuity: At the end of the movie when the Dr. Grant uses his cell phone to call his ex and talks to her son it is night where he calls from and morning (judging the Barney reference on TV and that the woman is kissing her husband off to work)  Costa Rica is on the same longitude as Florida and Michigan on the globe.  Even if she were living in Maine (which she probably was not) the time from sun up in each location is less than an hour.

Continuity: When they're are in the stampede of dinosaurs, Udesky falls and Paul picks him up. If you look at the film, Udesky is always coming last. Paul is always about 10-20m in front, but he magically morphs behind Udesky somehow when he falls. You never see Paul Kirby fall down, so that is ruled out.

Continuity: Tea Leoni's bruise on her cheek changes throughout the movie, once looking like a scratch, once looking like a bruise, etc.

Continuity: When Sam Neill opens the bag with the Raptor eggs in it, you can see the part of the bag that separates the eggs is completely intact, but in the next shot, that piece of the bag is all ripped and damaged.

Deliberate "mistake": Judging from the way the camera pans, and how the Raptor head moves accordingly, it's impossible for it to have actually been positioned behind the glass tube. The only way this look could have been achieved is if the head was inside the tube.

Continuity: When Dr. Grant is holding the camera bag out the window in order to drop the eggs and get rid of them, the strap for the bag is hanging loosely. The shot changes to behind him and now the strap is bundled up into the fist holding the bag.

Continuity: At the start of the film we see two people parasailing. In the close up shots we see that the young boy is lower than the adult, and that the adult is holding the chute's handles above his head. In all of the wide shots, specifically the ones from the side, we see that the boy and adult are level at head hight (boy is harnessed up higher) and that the adult now has the handles at his shoulders.

Continuity: In the scene where the black guy borrowed the cellphone from Mr. Kirby, he had a shotgun on his back, but when he fell to the ground, he had a rifle.

Continuity: Near the beginning as Alan is giving his speech, the MC woman is standing, then sitting, then she is standing again but then sits down.

Revealing: In the final showdown with the Spinosaurus in the river it is night time. When the characters get plunged into the river and they have the underwater shots, there is so much light it must be daytime.

Continuity: The plane the group flies in is identified on the outside as a King Air 200.  In the inside shots, the windows are from another type aircraft as the window shades are pull down types and in the King Air the windows are tinted by rotating a plexiglass cover to dim the light. Also, the engine sounds are from a piston aeroplane and this plane is definitely a turbo prop.