Before Jin and Mei are trapped by the bamboo spears they are standing among hundreds of short bamboo spears pierced into the ground as a trap. When the soldiers get killed by The Flying Daggers and fall down to the ground, the short bamboo spears are all gone.
As Mei is in the bamboo forest, split between the two bamboo trees several bamboo spears are thrown at her. Two pierce and get wedged in the bamboo trees level with her head. As Mei is sliding down the bamboo they are gone.
When Mei is feeling Jins face and body in the woods, you can clearly see Jin has an arrow sling on his back with 5 arrows. When Jin is saving Mei from the troops by firing arrows, He has more than 5 arrows in his sling.
During the battle in the flower field Jin is wounded behind his left thigh. Near the end when he leaves Mei, he is limping on the wrong leg.
The amount of snow covering the trees in the background during the finale varies greatly. In the earliest scenes they are snow-covered, but later scenes show them with no snow on them.
When Jin saves Mei from the general's troops in the bamboo grove, he blocks four swords which are swinging toward her simultaneously. One of the blades, however, clearly gets past Jin's sword. Rather than having his attack deflected, this soldier simply stops his swing and lifts his sword away in unison with the others.
During the fight in the snow, the dagger dangling in Leo's back is an obvious rubber prop.
In the last fight scene the wind is blowing strongly and snow is falling, but the actors outfits are not moving.
The music that the live musicians play during the drum duel scene, although beautiful, is not characteristic of classical Chinese music of that era.
Most of the trees are silver birch which is not native to China, but is from Europe (this movie was made in Ukraine).