Factual error: Throughout the whole movie, Russian sniper Vassili Ziatsez is using a 3.5 power PU scope on his sniper rifle. In reality, Ziatsev used the larger, 4 power PE scope.

Factual error: When the camera looks through the scope of the Russian sniper it is visible that the scope is of the Gewerr '43, the German sniper rifle, not the MOS Russian sniper rifle.

Continuity: When Vassili and his two friends go out to trap König by shooting telephone repairmen, their rifles are covered by hessian, when they are shooting the repairman the guns are uncovered, and when Koulikov and Vassili are on the way back and jump across the gap in the buildings their rifles are covered again.

Factual error: Sometime in the movie somebody (I think the boy) says the Nagant rifle that Jude Law uses has a 4 times magnifying scope. When you compare the distance that objects have in the movie without scoping and through the scope of the rifle the magnification is way bigger than just four times. I know that cause I own a 4x scope myself.

Continuity: As Koulikov is shot while jumping the gap we see the blood spatter created lies along the dark line above the red writing. In the next shot it shows the spatter from another angle in which we see that it is now above the dark line where it was originally.

Factual error: The hierarchy in the Red Army was very strict. It is totally unthinkable that a political commissar and an infantryman (private) should publicly dance and wrestle each other like two adolescents.