and pretty much all you need to know about this filmed version was already written by someone else, as most things tend to have been.
"i’m annoyed by the film suggestion that frankenstein, through his assistant’s blunder, is forced to build his creature with the “abnormal brain” of a criminal instead of the “normal brain” he intended to use. of course the creature is going to be dangerous. it has a predisposition to violence and evil. this isn’t science, obviously, though anyone can see why it makes for scary movie stuff. we’re afraid of the creature now because we know he’s basically a revitalized murderer. but this destroys shelley’s creature, rendering him incapable of earning the audience's support and sympathy. he cannot be the tragic hero that shelley intended him to be because he is a diseased criminal brought back from the dead by some kind of modern day voodoo. the cards are stacked against him. “science” decrees that he has no other course but violence, on account of his abnormal brain."