When Sayid is coming up to the island on the Zodiac boat, there is a giant sea turtle resting on the beach. The next shot is panoramic and there is no turtle there.
When Sayid meets with Nadia, the frame gets flipped. An external shot shows Nadia and a police car is on the right side of the hangar door. In the shot that follows, Sayid exits the hangar and the car is on the opposite side. Also, the purse that Nadia is carrying changes sides and the police officer in the background is wearing his badge on the wrong side.
When Sayid is on the raft approaching the island, there is a wide shot of the beach with no people or structures around. Once he has gotten off the raft, there are 9 people on the beach, including Jin, only a few feet from the water, and the frame of Eko's church is also now visible only a few dozen feet away.