Continuity mistake: When the Wendol are attacking the village at night, one of them is shot by an arrow and falls off his horse into water. A couple of minutes later the same shot of the Wendol falling is used again for another arrow hit.
Continuity mistake: Before the first battle scene, the king is telling them about the Wendel. The black-haired man is seen riding his horse back to the castle. He walks up and is seen taking off his gloves. There is a shot to the king and back to the black-haired man, and his gloves are on his hands.