Corrected entry: When Eli has the confrontation with the gang in the beginning he cuts the leader's hand off with his sword. When you see the sword in the very next shot, the blood is only on the edge of the sword and not smeared across it as it should be.
dbfilms
15th Apr 2011
Correction: If the cutting took ages, there would be enough blood to cover the blade. The action was over very quickly though so no reason to expect there to be a lot of blood.