Continuity: In the scene where we see Wick rubbing his toeless feet, the shot changes so that the camera is behind him and you can see him still rubbing except now you can see that he is simply curling his toes over.

Factual error: Nitroglycerin does not react with sunlight, nor does it boil in sunlight.

Continuity: Monique has the arm of her jacket cut by a helicopter blade, yet this is not visible throughout the rest of the movie.

Factual error: When the expedition is unloading from the helicopter, it shows a view of the lady with the helicopter blades about to cut her head off. It then shows a view of the helicopter, perfectly upright, and people are still jumping off! She then gets up and crawls to the rock wall, which in a full view you can see that it is at least 15 feet away from the edge. The helicopter blades follow her, perfectly parallel with the ground. It is physically impossible - the helicopter would have to be underground for this to happen.

Continuity: When the first climb the "K2" mountain Annie is breathing perfectly without opening her mouth, while the others are gasping for air. She notices she's not breathing hard and all of a sudden her mouth opens wide and she starts gasping too.

Revealing: Those are the most haphazardly secured cases of nitro I've ever seen in a movie. Couldn't they spare a shoelace or duct tape to secure the top?

Continuity: 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.