Character mistake: After being asked in class, Max refers to what he does as a "vivisection of a once-living organism", which in itself is a contradiction because vivisections are performed on living organisms. What Max does is called dissection, or more specifically autopsy, because he does it to determine the cause of death.
Continuity mistake: Mr. Weiss is in the hospital talking with Chin, Kono and Lou with bandages covering both ears that were supposedly chopped off by Sam Cole During the conversation we see the bandages change to above his right ear showing his ear is fine. Next the shot shows bandages are covering both ears, then the shot switches again with bandages above his right ear, then back to covering both ears. (00:31:22)