Continuity mistake: 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.
Factual error: When they find the camcorder and discover the battery is dead, Udesky takes the batteries from his Maglite, and they magically work in the camcorder.
Revealing mistake: When father and son are parasailing, in the close-ups (an obvious green screen effect) the clouds never change shape, note the small one on the left, revealing it's a still image.
Continuity mistake: After a guy shoots at an abandoned jet, the objective lens still shows the plane undamaged, as it was before he fired.
Continuity mistake: When Sattler, Mark and Grant are at home, the mug in Sattler's hands suddenly disappears.
Continuity mistake: When the boat carrying the parasailing guys is about to crash, the sky keeps swapping between cloudy and sunny depending on the shot.
Other mistake: When the plane drops out of the tree with the tail going down and all the people in the tail, it crashes and the metal actually crushes upward. There is no way that those people could walk out of that plane uninjured.
Continuity mistake: When the spinosaurus is chasing Grant and the kid and hits the fence the sun changes between shots.
Other mistake: When the Navy picks up the survivors, the person on the radio says that they have 6 souls on board. They only picked up 5 people.
Suggested correction: The 5 he picked up and including himself.
This correction really makes no sense. The pilot says "6 souls on board" but there's at least 9 on board. Grant, Paul, Amanda, and Eric, were picked up. Billy was already on board. Then there was the Man in Suit, 2 pilots, and a what appears to be an attending medical officer.