Goofs

One exploding cylinder of nitro results in a fireblast of hundreds of meters up a cliff (scene where Monique is hanging), but when an _entire crate_explodes (later at the army depot), only the unreinforced storage building is completely gone, and the surroundings are lightly damaged.

While in the cave discussing water shortage, water is seen dripping in the background.

In the scene where Annie and Vaughn are trying to mark where they are with a bag of Tom's blood, they use a plastic bag which would only hold a small amount of blood. Yet when they get it through the ice and blow it up, the amount of blood that explodes is much more than could have been in that tiny bag they pushed through.

Peter walks into a tent where Monique tells him where to find Skip. The stubble he has when talking to Monique is totally gone when he finds Skip, immediately afterward.

When two amateur climbers felt from cliff they pulled Royce down with them. If you watch carefully their fall, you will see that their rope missed Royce. But in next scene rope hooked him.

The depiction of High Altitude Pulmonary Edema (HAPE) is grossly inaccurate. HAPE is usually a result of altitude sickness and can most commonly be prevented (or at least have a measure of prevention provided) by slow acclimatization to the higher altitude. It is not a guaranteed condition to every climber at a high altitude. Moreover, the consumption of water has little bearing on the onset of HAPE. Additionally, given Annie's and Tom's high-degree of experience, and previous statements regarding their proposed high level of safety, they would most certainly have insisted on climbing K2 with the aid of oxygen, the use of which also staves off HAPE.

Nitroglycerine is not green in colour, in fact it's a heavy, colourless, oily liquid. It is sensitive in its liquid form, but when it freezes at 13°C or below, it becomes much more stable. However, when it unfreezes again, the unfreezing process makes it very unstable and it may well explode. The events in the film where the hut explodes and where Malcolm and Kareem are killed can both be explained by the nitro in the bottles unfreezing.

When Wick and Peter are climbing up a rock wall, Wick checks his watch, which he's wearing directly around his wrist. To avoid having to reveal any unnecessary skin and get frostbite, experienced climbers wear their watches on the outside of the jacket's sleeve.

Nitroglycerin is generally clear in color. Exposure to sunlight would not cause it to "boil" as shown.

When pulling people out of crevasses, mountaineers are unlikely to just pull the rope with both hands (especially as their hands are freezing cold), since any mistake will result in the victim falling back and sustaining more injuries. (Incidentally, this is what happens in the movie quite frequently and contributes to the suspense). What they would do instead is use their accessory cords and carabiners to create a "mechanical advantage" system, and slowly lift the victim towards the lip of the crevasse in a controlled manner.

In all of the scenes with the trapped climbers, not once is their breath visible. Cold weather does not always make breath visible, particularly on film.

Wick's dead wife was wearing her wedding ring on a string around her neck. When Wick finds her, he simply pulls the ring off the string; presumably, the string had deteriorated with time.

When Monique is near the avalanche, she's already down on a ledge under the cliff edge and is no longer hanging by her ice ax. Thus, she isn't dislodged by the avalanche.

After Montgomery Wick massages his toeless foot he gets up and in doing so you can see Scott Glenn's real toes.

The helicopter lands in landing skid-sized ruts in the snow when picking up Wick.

In the radio conversation between Peter Garrett and his sister Annie, their voices can be heard clearly with no static interference on the opposite ends of the radio. Also, they never release the talk button on their radios; the type of radios they are using do not allow this type of conversation.

When the father plunges to death, you can see his hand hanging still for about 3 seconds just before he comes down.

In the opening scene you can hear the echo of the actors' voices as in a recording studio while they are talking to each other hanging from a cliff.

When Annie pulls up Tom McLaren's shirt to look at his injuries, his chest's movements aren't synchronized with the sound of his breaths.

When the billionaire gives his party speech, and ends by saying "Let's Party!", he gestures bringing the microphone from just below his mouth to 3 feet away, but there is no change in volume.

Reflected in sunglasses during various shots.

When Bill Paxtons character is eating a protein bar as they near the summit, he mistakingly bites into the wrapper and you can clearly see it shining in his mouth as he chews

When a Pakistani character is shown praying, the way he was praying was incorrect. He completed some steps in the wrong sequence and too quickly.