Continuité: When Dr. Menard's wife is alone at the cottage she pushes the dresser up against the door twice.
Erreurs factuelles: In the last scene, the radio announcer in New York City states that the governor has declared a state of national emergency. Only the President can declare a national emergency, not a governor of a state.
Continuité: During the shark vs. zombie fight, the zombie gets his arm bitten off. However, we see him with the arm after he loses it, and without the arm before it is bitten off.
Equipe ou équipement visible: When heroes escape from Menard's cottage, one of the crew is reflected in the window of the jeep.
Révélant des erreurs: When Dr. Menard is driving and discussing the zombie plague with the visitors, the "clean" part of the jeep's windshield (i.e. the path of the windshield wipers) appears to be cut out of the glass (probably to provide a better view of the actors and prevent the camera being reflected on the glass).
Erreurs factuelles: When Brian fires a rifle at the shark from the boat, he fires the rifle multiple times very quickly. The rifle he is using is a bolt action rifle, which must have a bolt part moved before each fire. He does not touch the bolt.
Continuité: After Brian has killed the zombie that has killed he has a small drop of blood on the right armpit of his shirt. When he arrives at the hospital, his shirt has been doused with blood. After dispatching the first zombie, his shirt has a lot less blood splatter on it.
Erreurs dans la géographie: The New York harbor patrol boat flies a French tricolor.
Continuité: While defending the hospital from hordes of zombies, Peter and Brian throw Molotov cocktails at the entrance. Despite throwing several that result in fireballs and flames, each time one is thrown the hospital entrance is clear of any flames.
Révélant des erreurs: The scene near the beginning,where the cop shoots the big bald zombie,and it falls overboard. You see the zombie fall into the water, and the camera pans across the water towards NY harbor. If you look very carefully in the bottom right hand corner of the screen, after the zombie falls underwater, immediately before the camera moves, you can see his head pop up as if waiting to get back on the boat.
Continuité: The film opens with a scene of Dr. Menard saying "The boat can leave now, tell the crew." The moment is repeated in flashback later in the film, but it's not the same take, Menard's movements are completely different and there is now another character in the frame.