In the first half, after Judah has been convicted and has been on the ship and it is rammed, he jumps into the water and saves Quintus and pulls him onto the floating wood. Before he knocks him out with the chain, almost immeadiatly before this, watch the movements Judah does to hold Quintus when a camera angle change no further than a few inches occurs. When the camera angle occurs, the movement is slightly repeated, causing a small film editing error.