In the scene where Adam first discovers the bee, the glasses on his face disappear and reappear between shots.
After the attack on the tribesmen one of them is dying. He's holding his hand under his head. Then he dies. The next shot his hand is much lower.
Near the end of the film, when the plane lands in the jungle, it appears to be moving faster and slower between the different shots from the interior and exterior.
Passenger airliner doors do not open outward, as shown in the movie. They pull in and swing to the side.
In the attack on the Shadow People village, a number of men fell before the explosions that supposedly knocked them over occurred.
The airliner maneuvers without any movement of its control surfaces.
In the beginning of the movie just after the first attack, as the natives are running into the woods you can see an obvious crew member at the edge of the woods waving his arms as if to say, "alright, everybody run this way".