Continuity mistake: When he fights Chuck Lidell, he is wounded on the right side of his body. During a scene when he is lying on his side, the wound has moved to his left side and then magically reappears back on his right when he stands up.
Continuity mistake: In the first scene of prison violence, babyfaced bully Semyon grabs a guy's head and smashes it on the table. In the close-up we see the foot tray bouncing off, pieces of lettuce fly and a clanging noise is heard. And yet, after the cut nothing happened, the tray is still in front of the poor victim, not a piece of bread out of place, nothing spilled on the table. (00:15:30)
