Continuity mistake: When Robert DeNiro renounces his vows of obedience, he enters the room with his hair tucked behind his ears. During the conversation with Jeremy Irons, the camera cuts away and returns showing that DeNiro's hair has changed style - the camera then cuts away a couple of times and when it returns his hair is behind his ears again. (01:25:00 - 01:26:00)
Continuity mistake: At the beginning, when Jeremy Irons is climbing the water falls, he is barefoot, but in one shot he uses sandals.