Revealing mistake: When the family's car is about to be hit by the ambulance as they try to escape downtown, Gerry is driving and his wife is up, leaning over the passenger seat talking to their daughter. The camera angle changes to a view from behind, and as the ambulance is about to hit, we can see there is nobody in the car and the ambulance driver is wearing a safety helmet. This is viewable in just a few frames.
Continuity mistake: During the outbreak on the plane, the same guy is seen running from his seat twice after each of the baggage walls is broken down.
Other mistake: When Gerry and Segen are in the plane towards Cardiff, a zombie attacks a flight attendant and a whole section of the plane. Despite the fact that what's happening would be obvious to the passengers of that section, no one even tries to escape the attack by going to the back of the plane, in Gerry's section. Gerry and the passenger have the time to pile up luggage without anybody from the front section interfering.
Factual error: An An-12, the aircraft the main character uses to fly all over the world, has a maximum range of about 3,500 miles. Hardly enough to fly from the US to South Korea or from South Korea to Israel. The An-12 also miraculously transforms into a C-130 in a couple of filler scenes. And why is this ex-Soviet aircraft marked in USAF markings, assigned to McGuire AFB?
Continuity mistake: After the family reaches the apartment and everyone is listening to the radio, the light for the fish tank is on while the power is out.
Visible crew/equipment: When the family's car is being hit by the ambulance, we see Gerry's head bouncing around by the impact in a close-up. Camera angle is from inside (approximately from the centre armrest). We see out his window, and there is nothing there. The camera angle changes to an exterior shot, and its clear that the position of the ambulance hitting the car should have made the ambulance visible from the interior camera.
Factual error: Gerry and Thierry use Iridium 9555 satellite telephones to communicate with each other. These telephones require a clear view of the satellites in order to operate, however both are able to communicate even when a clear view of the sky is impossible, such as inside an aircraft or in the bowels of a warship.
Continuity mistake: When Gerry and his family are escaping the first wave of the zombies they encounter, they steal an RV and make a run for it. While trying to shake a zombie off the vehicle, Gerry smacks into a taxi, bending the bumper and busting out the headlights on the RV's left side. A little bit later in the film as they are traveling down a highway, they pull to the side of the road to try and find Rachel's spare inhaler, and the front of the RV is shown. The bumper is still bent, but the headlights are now fixed again.
Continuity mistake: Just before the garbage truck mows down the policeman and continues through traffic, we see behind the cop a street full of stopped cars, and a building less than 100 yards away (the street starts at a T-intersection). There is no truck, and no way for it to have gotten onto the street at the speed it's going.
Other mistake: Despite the number of staff and zombies (former staff) at the W.H.O Research Centre, the car park leading up to the main entrance is empty but for one car.
Continuity mistake: The plane that Brad Pitt gets on board in Israel is a Airbus A310 from the exterior shot, but the interior scenes take place in some kind of Boeing widebody aircraft, as noted by the Boeing signature interior, and more significantly the design of the overhead compartments.
Factual error: When Gerry is in Camp Humphreys, the leader of the group there tells him to make sure Maverick keeps the nose of the plane pointed towards the sun. However, since they're going to Jerusalem, and it's night time, they would likely be headed West, therefore not towards the sun but rather in the opposite direction.
Continuity mistake: In the scene where the plane decompresses, the pilots are shown putting on air masks. Seconds later just before the plane crashes, the pilot is again shown, this time without an air mask.
Factual error: Atarot Airport in Jerusalem has been closed since 2000. Even when open, it was a tiny regional airport only designed only for eight propeller passenger planes, not the major international airport depicted.
Continuity mistake: Gerry is standing by his stove where he is cooking pancakes, looking to his right at the TV. Above the TV is a cabinet with a purple sticker on it. As his daughters and wife get up to leave the room, he is suddenly standing next to this cabinet. Then, only a split second later, as he says "Hey! Plates in the sink!" he is suddenly back in front of his stove, which is a few feet away. He moves to these spots instantaneously.
Other mistake: As Gerry enters the aircraft carrier command centre, we see screens with "world projections" of remaining uninfected populations by continent. They are counting down (illustrating the quick spread of the disease). However, the countdown speed of all of them, is approximately 3% each second - which means humankind would have no more than 20 seconds at this rate. The countdown speed should realistically be about 100,000 times slower than that (about 3% each day), which would still be the fastest pandemic spread the world has ever seen.
Revealing mistake: When Gerry cuts the woman's hand off you can see it's an obvious fake arm and stump.
Continuity mistake: In the scene after the plane crash, Brad Pitt is hanging by the waist with his face towards the ground and blood dripping from it. When he looks up, there are blood trails running down his face rather than towards the front of it. The blood trail should be going from the cuts toward the front of his face, not towards his chin.
Continuity mistake: In the car, before the first zombie attack seen in the film, the family's two daughters are in the back seat as they are playing a family game. The youngest one, Connie, leans over to whisper in Rachel's ear, and it is a profile shot of her face and arm, her neck and some of her chest visible. It cuts to a different angle as she is sitting up, and suddenly she has what appears to be a large stuffed bunny or mouse in her arms, with its ears covering a lot of her face that was not visible in the previous shot.
Continuity mistake: As Gerry enters the ship's command centre the first time, when he starts walking across the floor, we see a bearded man in the background, at the stairs against the wall, talking to someone. The camera angle changes, and he is now sorting through papers perhaps 60-70 feet from where he was just standing.
Continuity mistake: Three times through the movie, we see the command centre on the ship with people running around. Based on several people's movements, it seems that all these scenes were taken at one time, from different angles - too many of the same people moving the same way, carrying the same things.
Continuity mistake: The girls are kicked off the USS Argus when the military thinks Gerry is dead. Thierry sends them off on a helicopter. As they board the helicopter, we see a bridge structure behind Thierry, who is looking down the length of the ship at them - and also behind them is 'the same' bridge structure. It has been shown, in several shots through the film, that the Argus has just one such structure.
Revealing mistake: During the first major panic scene downtown, as the family get into the RV, one of the shots shows a man in a blue hoodie being 'changed' by the virus. He writhes on the ground in front of a taxi - the lettering on the door of the taxi is backwards, showing it's a reversed shot.