Factual error: The movie's title is factually inaccurate. The bride isn't "of Frankenstein" (the doctor), she's the bride of Frankenstein's monster.
Suggested correction: First, that's not what constitutes a factual error. At this point in time, "Frankenstein" was commonly used as the creature's name. Even today, it's understood. And in the novel, Frankenstein was never a doctor or held a doctorate of any kind. So, based on your faulty logic, it's a factual error to call him "doctor."
Suggested correction: In addition to the other corrections, the word "of" in the title can also be interpreted as meaning "from." This interpretation would allow the title to mean "The Bride from Frankenstein" or "The Bride Made by Frankenstein."