Continuity mistake: When the SR-71 is taxiing from the hanger its tail number is 17964, but just before the plane explodes the tail number is 17974. (01:25:15 - 01:31:30)
Continuity mistake: After the train operator gets his head dunked in the toilet by Warden Rankin, the poor guy has to wipe his face with tissue. The tissue disappears and reappears between shots. (01:17:13)
Factual error: When the bishop is told Navarre is back and the bishop from the balcony claps and orders for Cezar, the portico behind the servant has a sprinkler pipe running from the first column to the opposite wall. Kind of advanced for a medieval castle. (00:33:00)
Revealing mistake: You see Scott walking towards the shower and he says hi to Chubby while passing him, but if you look closely after that you can tell Scott's only wearing a mask and his shoulder is bare skin. (01:00:15)
Continuity mistake: At the ambush, a gunman shoots the left rear tyre. Next cut the tyre is undamaged.
Continuity mistake: When Cain and West are in the morgue trying to re-animate the cadaver, a phone rings outside at the security desk and when we see it, the buttons are facing outward, but when Megan goes down to the security desk, we see the phone is now turned completely around. (00:49:32 - 00:56:54)
Continuity mistake: When the two traitors ride away after seeing Hidetora at the top of the hill, Hidetora's left leg is exposed due to his kimono being blown by the wind. In the next shot of Hidetora, his left leg is suddenly covered. (01:41:15)
Visible crew/equipment: When Braddock jumps from the helicopter, the pilot is seen in the doorway. (00:05:26)