Visible crew/equipment: When the group is flying into the island, there's a shot of the plane flying in front of the cloud, and there's the obvious shadow of the helicopter that filmed that shot. (00:15:25)
Continuity mistake: When Dr. Grant dives in the water after they're attacked, he has his watch on his right hand before he dives in, but in the rest of the shots of Sam Neill he has his watch on his left hand.
Continuity mistake: 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.
Continuity mistake: 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. (01:19:55)
Suggested correction: The Spinosaurus used its full body force to smash the fence. The gate, being a smaller target, was too small for the Spinosaurus to use its full body force.