If New York City has lost power, the cell phone towers are inoperable. Therefore, cell phones will not work. This very problem happens all over the country when there is a power failure. There is not always another tower close enough to pick up your signal. [Most if not all cell phone towers have emergency generators. While they would not provide power indefinitely, depending on their fuel, they could keep the tower operational for anywhere from a couple of hours to a few days.]

There's a scene when the storm starts freezing the buildings in New York and windows break from the extreme freezing temperature. Later in the end of the film, when the helicopters come to look for survivors, some land on the buildings with all the windows intact. [There's different types of glass; glazed, safety, tempered, laminated among others. All have different characteristics for shattering and can withstand different environmental conditions.]

When the helicopters are flying over Scotland and through the eye of the storm, the temperature is cold enough to freeze fuel in the pipes and tanks. Yet the pilot takes a good five seconds to open the window, and then freezes. Logically, anything cold enough to freeze fuel should not have given him that long. Fuel has a much lower freezing point than the human body. Plus, fuel pipes, even though metal, are usually in an area hotter than the cabin, since the engines are running there, generating heat. Even with the added padding of a coat, a body just could NOT have taken longer than fuel to freeze. The pilot should not even have had time to reach for the window before freezing, let alone to open it and then wait a good five seconds to do so. [The fuel in the tanks did not freeze instantly. It took the entire length of the scene. Remember, they began having problem (presumably when the fuel began to crystalize) and continued to fly for several seconds before the engines stopped.]

The US Army loaned several UH-60 Blackhawk helicopters for the rescue scene at the end, prompting the Canadian authorities to reassure the people of Montreal that they weren't being invaded by America. [I live in Montreal and that never happened. We have a military base and a helicopter plant here and we constantly see military helicopters overhead.]

When the ship sails into New York city, it is stopped in a matter of feet when the wreck of the city bus is trapped underneath the bulb stern. A ship with that size and speed would have enough momentum to move the city bus much further. However, in that case it wouldn't conveniently stop outside the library. [If you look closely at the hull of the ship, you can see that it is actually dragging on the street below it. That is what stops it. Not the bus. Also, several overhead shots in the movie show that the ship has also slammed into the building across the street from the library.]

After the news report about Grand Central Station being closed, the weather man stands in front of a map of the large weather system over Canada. The storm is spinning clockwise, when it should be counter-clockwise in the northern hemisphere. [Clockwise spinning storms do occur in the Northern Hemisphere, they are just rare events. http://www.usatoday.com/weather/resources/askjack/wfaqtorn.htm http://www.spc.noaa.gov/faq/tornado/ (Most tornadoes - but not all - rotate cyclonically, which is counterclockwise in the northern hemisphere and clockwise south of the equator.)]

After it comes to light that Laura's leg is in a bad state, Sam and friends decide to risk going outside to the ship to find some first aid. A First Aid cabinet is visible during the scene where the library vending machine is smashed. Fair enough Sam and friends may not be aware of this being there, but there are two members of library staff who should know about this. No attempt to bring this to Sam's attention is made while he is creating his snow shoes. [Character mistake not movie mistake. Moreover, they needed penicillin which is a controlled antibiotic. Not found in generic first aid kits.]

In the movie Jack Hall describes that the chunk of land mass that broke off where he was in Antarctica was the size of Rhode Island. In 1992, there was an iceberg that floated away from Antarctica and broke in two and the larger half, given the moniker B-10A, was the size of Rhode Island. [In the beginning of the movie, they say that they are at the Larsen B ice shelf. The movie was referring to the March 2002 collapse of the Larsen B ice shelf in Antarctica which was also the size of Rhode Island.]

In many of the shots that were supposed to be really cold, or even fairly cold, the character's breath is not seen. [Seeing breath in the air is caused by humidity in the air, as well as low temperatures, as mentioned in one of the audio commentaries.]

Even though many buildings and even the American flag freeze completely solid in some scenes, this fails to happen to any of the main characters, despite the fact that some sleep outside in tents during a snowstorm without a jacket or hat. [Well, A) the people are moving with jackets and gear to keep warm. B) Things freeze when the super-cooled air comes down and the main characters were inside then.]

When the tidal wave hits New York there appears to be a large number of people still in the city, as evidenced by the shots of them running from the wave as it pours through the streets. However, when we see an underwater shot of the front of the tanker, there doesn't appear to be a single dead body anywhere in the water. While I appreciate that a number would have been washed through with the wave, surely this would not be everyone. [The shot you mention is very isolated (that is, it was a close-up). So what's to say that if there were any dead bodies, they would have all been isolated in this one area where the ship just so happens to stop? As you yourself point out, chances are they would have been swept away much further away (even more likely considering the severity of the tidal wave).]

When the wall of water is about to slam into New York, a city bus driver is stuck in traffic in the pouring rain. As he is listening to the weather report on the radio, he looks in his rear-view mirror to see the wall of water coming up behind him. There is not one drop of rain obscuring the view between the outside mirror and the window. [There are drops of rain between the window and the mirror, but since the cameras focus is on the wall of water in the mirror, the drops simply aren't in focus. The camera's depth of field is simply not set sufficiently to capture the rain drops, but if you look close enough you can see the blur from them.]

The aircraft flying to rescue the British Royal Family are described as belonging to "an elite Royal Air Force search and rescue squadron." However the middle aircraft has white and green striped camouflage painted on it, which is a pattern only used by aircraft in 845 Naval Air Squadron (a Royal Navy unit), which whilst arguably elite, is used for troop transport, not SAR. [It simply says that "an RAF search and rescue team has been dispatched by helicopter." It never says anything about them being elite. In a crisis such as this, SAR uses any available equipment they can.]

We see a screen of satellites on the GPS receiver throughout the movie. This view does not contain any useful navigational data. [The screen actually shows the latitude and longitude very faintly below the circle. ]

In the scene where the tidal wave goes through New York and the wave is shown crashing over the Statue of Liberty, the Statue of Liberty is facing towards New York - it should be facing the opposite way. [Checked, double-checked - simply not so. The camera pans around the statue in a sweeping motion so parts of the city are seen in the background, but when it finishes the circle and moves slightly closer, it is evident that the statue is facing the way it is supposed to be.]

When Jack and his buddy find the door in the library, where his son is supposed to be, a very bright light is shining through underneath the door. Then he opens the door and the room behind that door is just totally dark. [The room is not 'totally dark'; we can see the pink glow of the fire on the frost on the back of the door as soon as Quaid opens it. He was able to see the fire more brightly from the outside because of the contrast it formed with the darkness in the corridor. When the door swings open we can even see the small gap between it and the snow which allowed that small amount of firelight to escape.]

When everybody in the Public Library hears a strange sound and goes out to investigate it, they all go to the front part of the library where you see the entire first floor flooded. However when Sam and the other two men come back from going to the ship and are running from "The Big Freeze" the snow slopes down to the very bottom of the first floor. How can this be? The first floor was flooded and would have frozen over. [If you're talking about the exterior shots, it's clear that the snow covers at least the bottom floor; the guys have to get in through the very top of one of the arched windows. If you're talking about interior, we see the same room we saw everyone assembled in earlier, before most of them leave on their ill-fated attempt to get out of the city. To get there, running from the floods, they have run up some steps, through a revolving door, and then up more steps - higher than the water, over which they then look out. Either way, this is not a mistake.]

When we see the outside of New Delhi, there is a news reporter outside, speaking in English (he is definitely Indian). If he's Indian, why is he speaking in English? [A major conference of the type depicted in the film would attract interest from all over the world. The reporter is covering the conference on behalf of an unspecified English language news network - you can see that the logo on his microphone has the word NEWS written on it in English.]

When Sam and his team decide to stay behind in the library and wait out the storm, they create a fire using an old fire place in the building. However when ever there is an over head shot of the library, you never see smoke rise from any part of the library. [White smoke against white snow is very hard to see.]

When the tidal wave is slamming New York, it shows that Liberty Island is a mile from shore. In real life it's not very far from Manhattan. [Liberty Island is in fact 1.6 miles from southern Manhattan.]