Continuity: In the scene where Jack is briefing the President, he draws a line on a map of the U.S. and tells the President to have everybody south of that line evacuated. The shape of the line changes between shots.

Factual error: The football (soccer in the U.S.) match we see relatively early on in the film is said to be between Manchester United and Celtic, in Glasgow. However, the non-MU team isn't wearing Celtic's home strip as they should be if playing in Glasgow (it's actually Boca Juniors from Argentina, in a match played in 2002) and the stadium shown is actually Old Trafford, Man. U's home ground, as shown by the advertising billboards in the background. Submitted by Jon Sandys

Revealing: Very near the end of the movie, when the NOAA director is viewed in the helicopter as it approaches NYC, the image is reversed, verified by the David Clark logo on his headset being reversed. There are two different shots of this just a few seconds apart, and they are both reversed.

Factual error: When the International Space Station is shown, it's spinning. The space station doesn't spin. The centrifugal force would create gravity on all the outer sides of the space station - and make it impossible to dock other modules. Submitted by Jacob La Cour

Factual error: The tidal wave that strikes Manhattan is shown coming from the west (From New Jersey) as opposed to coming from the east of Manhattan (where the Atlantic Ocean is). Where did this tidal wave originate from, the Hackensack River?

Continuity: The first time we see the black bear cage, the sign (and the entire shot) is a reversed image. Twenty five minutes later, we see the black bear cage again and the sign is correct.

Continuity: Just before the huge wave hits the library, we see that Laura cuts her leg. She cuts it on the side of the top part of her leg. Later in the movie, when her trouser leg is pulled back to reveal the wound, it is now on the front of her lower leg.

Factual error: NOAA headquarters is shown to be in downtown D.C, when in fact it is just outside of the District in Silver Spring, Maryland.

Factual error: When Jack arrives in New York he's right next to the Statue of Liberty. However when he reaches the library he comes from the East River and walks west. That is a pretty big detour around the southeastern corner of Manhattan, instead of taking the direct route. Submitted by Jacob La Cour

Factual error: When the North Atlantic current is shown on a world map, there are a couple of errors on it. 1) South East Asia is missing, and 2) Arabia is joined to Africa.

Visible crew/equipment: When Jack is in the library towards the end of the movie, he looks in a room and then the shot goes back to facing him. If you look very carefully, in the back of the hall you can see a person walk by. He is very hard to see.

Continuity: When Jack is trekking north to Manhattan with two of his colleagues, one falls through a glass ceiling and the other cuts his right hand trying to save him. Despite the fact that we see his hand bleeding profusely, you can see in the subsequent scene that his right hand is just fine.

Continuity: When the tidal wave is hitting Manhattan, and the camera cuts to Laura walking behind the black woman and the cop, the woman panics and turns to her left to look at Laura, but in the following closeup she turned to her right to look and talk to Laura. (Slow-mo may be required.)

Revealing: In the scene where a newscaster is mentioning that two airplanes were caught up in the storm and crashed, they show footage of the AVIANCA (Colombian airline) Flight number 52, which crashed in New York on January 25th, 1990.

Other: None of the men in the movie grow any facial hair at all, even the ones stuck in the library in New York.

Visible crew/equipment: When the janitor is approaching the door you can see a shadow of a man, which isn't the janitor's, in the background holding something that appears to be a microphone. Submitted by Mortug

Factual error: There is a scene where a helicopter's tail rotor freezes up, causing the copter to spin out of control and crash. The problem with this scene is that the helicopter starts to spin clockwise, in the SAME direction as the main rotor blades. In actuality, engine torque would cause a conventional tail-rotor helicopter to spin in the OPPOSITE direction of the rotor blades, in the event of a tail rotor failure.

Continuity: When Sam and his two teammates are on their way to NYC for the competition, the airplane gets hit by turbulence. Two attendants go to the back of the aisle with the drink cart, when the plane starts to shake, and in the long shot of the aisle (from the head to the back) one of them is in front of the cart and the other one is behind. However, both are behind the cart in the close up, when they try to prevent the cart from hitting anybody.

Continuity: When the two men at the start of the film are saving Dennis Quaid from falling, you can see Quaid reach for one of the others' hands, then that guy grabs him with both hands, but in the following shot, Quaid is holding the hands of both men.

Factual error: The International Space Station is shown taking meteorological measurements and transmitting them to earth. First of all, there are HUNDREDS of weather satellites already in orbit for that purpose, the use of which does not require distracting astronauts from other duties. Second, the ISS does not have sophisticated earth-sensing equipment.