Continuity mistake: Hannibal incinerates Zigmas Milko's dead body with his (Milko's) dog tag in his (Milko's) mouth. When Hannibal confronts Grutas while he (Grutas) is bathing, Hannibal tosses a dog tag at him, which should be Grutas' own. Soon after however, the camera shows the very same dog tag that was supposed to have been incinerated with Milko: "Zigmas Milko 03402810 3/ INFRGT33".
Continuity mistake: When Hannibal is at the writing desk, he sits with a pencil in his left hand. A banker comes in to the chateau to speak with his aunt, and the camera shows Hannibal listening in to the conversation. While this is happening, he puts the pencil down. There is a quick cut to a different angle, and the pencil is in his hand again, with no time to pick it up, and the next shot shows him putting the pencil down again.