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."