This was the priceless classic of all horror films, made by the Universal Horror Unit. There is no better version, although there are more "correct" versions which conform to the Mary Shelley story.
Trick or Treat Halloween kids today wear costumes of what is now called "Frankenstein", but that was the name of the scientist, not his creature. In the original story, the creature was beautiful and vain, and was the darling of society. He freaks out when his flesh begins to rot, and looks to Frankenstein to cure him of the rotting process...