Jacob La Cour

Factual error: At 300 meters, we see the hull starting to cave in - from the outside. But the outside hull is only a cover. The preasure hull is below that. There is water behind the outer hull, so it would never cave in that way. We actually see the double hull in a shot where we pass from the inside of the boat through the double hulls and out into the sea.

Jacob La Cour

Continuity mistake: When the boat has surfaced in the ice, Polenin goes to his cabin. Inside we see a stack of books lying neatly on a top shelf. However, after all the bumps seen during the earlier fast ascent, where things and people were thrown around, the books would be scattered over the floor.

Jacob La Cour