Other mistake: Finbar is shown torturing a victim while the victim has his head in a halo used for immobilizing a person's head. The screws to hold the victim's head tight can be seen not to be touching his head, yet the victim is still bleeding from the screws.
Continuity mistake: At the end when Walter Weed comes to the escape car the car is already running, with smoke coming from the exhaust, but then he starts the car when he wants to drive away.