Factual error: The deer in the forest somehow does not hear the giant dinosaur approaching, so doesn't run away. (01:21:10)
Suggested correction: A different interpretation is that the deer knows the difference in the sounds - gurgling/roars of an approaching herbivore versus carnivore - so it didn't perceive it as a threat until it got unusually close (so the deer looked to see why). The dinosaur flung the deer aside, then proceeded to eat the vegetation where the deer was. It isn't likely that the dinosaur (if a carnivore) would toss aside a fresh deer meat brunch in favor of some green brush.
Factual error: As the C-119 cargo plane is going down over the Bio-Syn reservoir, the right wing snaps off, separating completely from the aircraft. As a result of upward lift forces pushing upward on the left wing no longer being countered by an equal lift force from the right wing, the aircraft would roll very quickly to the right. However, after the right wing separates, and just before the scene cuts away, the C-119 dips to the left.
Factual error: When Alan and Ellie are flying over the frozen mountain lake on the way to Biosyn, the plane flies over the dam. The dam is concave towards the water. The convex side of a dam always faces the water. Otherwise the dam would collapse. (00:34:54)
