Factual error: Hannibal makes a bomb using latex gloves that were not in use during the early 50's when the movie takes place.

Factual error: Hannibal's final victim in the movie is supposed to be in Melville, Saskatchewan, and he is told it is near Saskatoon, Saskatchewan. These two cities are 356 KMs apart, and about four hours drive away, longer in the 1950's. This is further distance apart than Paris to Marseilles, France, where most of the movie took place. Also, Melville is surrounded by farmland and fields, not the forest depicted in the movie. The Prairies near Melville are pretty much barren of trees.

Continuity: In the scene where 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.

Other: In the final scene, as Hannibal drives away, the car is spotlessly clean - after driving hours on slushy roads, the car should be filthy.

Continuity: In the scene when Hannibal returns from Lecter Castle after the murder, his aunt is waiting for him in his home. In the close up of the aunt Hannibal's collar is up, in Hannibal's close up his collar is down.