Continuity: In the scene where Sean wakes up on the beach, he is lying face down in the sand beside a fish, and he is wearing gloves. In the next shot they are gone and reappear again in the following shot.

Factual error: In the scene where Brendan Fraser drops a light stick and times its fall he states he is using g = 32 ft/s^2 and the time of fall is just under three seconds. This gives a fall distance of 144 feet, but Brendan states that the distance is 200 feet. Even if he chose to round off by a large factor, it should be rounded down, not up.

Continuity: At the beginning where Trevor is looking through Max's stuff, he sets the glove on the table. In the next shot the glove is back in the box.

Plot hole: If every time there is a series of seizures in the earth, the temperature rises to 120F (enough for the oceans to evaporate), how have the birds and dinosaurs survived? The birds I'll consent may have flown to a cooler area, but T-Rexes are big cold-blooded animals that would have dropped dead long before the humans dehydrated.

Other: It is impossible to receive a cell phone call at the center of the earth. There is no way that a signal can penetrate thousands of kilometers underground like that.

Continuity: In the scene where Sean is walking by the large dinosaur bones, he disappears for a second as if he has become invisible, but he reappears in the next shot.