Factual errors: Gavrila Alexich, one of the movie's main protagonists, could not participate Battle of Ice. He was killed one year before it, in 1241, storming the fortress of Koporye.
Continuity: Dietlieb, one of the Teutonic knights leaders, is shown as wearing a helmet with an open had on the top. A knight wearing this helmet is killed during the initial part of the battle, but the same knight is later seen together with the Grand Master and other leaders when the knights withdraw and regroup and is also seen to drown when the ice gives way.
Continuity: As Olga helps her two suitors, Gavrilo and Vasili, from the battlefield, each is walking beside her supported by her in the middle with their outer hands empty. The next shot from the rear shows that Vasili has acquired a sword that he uses as a walking stick to assist him.
Continuity: Vasilisa's braids appear and disappear when she is being armed and dressed in chain mail.
Continuity: When the request in made for rope to bind the people of Novgorod, the person making the request places himself between the Teutonic Grand Master and the seated religious figure with his front to the crowd. The next scene shows him with his back to the crowd and having moved a little distance from the seated figure.
Factual errors: The cross displayed on the shields borne by the Teutonic knights is different in shape and colour to the actual one on their coat of arms.