We've all had this conversation:
"You're a Harry Potter fan?" someone says to us. "So am I! I must have seen each of the movies a dozen times!"
You: "What about the books?"
Someone: "Oh, I haven't read the books. But I'm a HUGE fan!"
Doesn't that make you want to scream? Can we not all agree that, if you have not actually read J.K. Rowling's original Harry Potter novels, then...
YOU'RE NOT A HARRY POTTER FAN!
I don't care how many times you've watched those ridiculous movies. I don't care that you know the film dialogue off by heart and that you can name the actor who played the auror who is standing at the gates of Hogwarts when Harry trudges up, his face bloodied, near the start of the film version of The Half-Blood Prince, or that you think the portrayal of Draco Malfoy is simply dreamy.
If you have not read the books, even once, you are not a real Harry Potter fan.
That's why I can't stand Harry Potter trivia events these days. In North America, at least, the organisers' idea of a show stopper, a stumper, a question that separates the fans from the wannabes, is something ridiculous like: Who was the gaffer on the second movie? I don't know and I don't care. I can barely watch the films at all, not to mention studying their ludicrously long credits to prepare for a trivia contest. Ask me about Rowling's world, her characters, her plots, her details... don't ask me about the movies.
What is happening in American society is that the movies are replacing the original books as the canon of Harry Potter. This is ridiculous. The movies are fine as stand alone projects -- some of them are even mildly entertaining -- but they cannot and must not replace Rowling's works as the foundation of Harry Potter fandom.
Not only are the film versions significantly inferior to the books as stories, as narratives, as world-builders -- they are flawed even as films. They are internally inconsistent and self-contradictory. They have plot and character-development gaps through which you could fly a hippogriff and they undermine many of the most praiseworthy of the themes, of the creative decisions, of the original books.
I have described many of what I perceive to be the films' shortcomings in other blog posts so I won't rehash all of that now. Suffice it to say, in my Harry Potter fandom, if you haven't read the books, you're not a Harry Potter fan. Okay?