Harry Potter...

haven't watched, haven't read, and don't plan to =)))

why isn't there an option for "None"?

Because that's not an option at all, as anyone interested in the world around them should at least familiarize themselves with such a widespread (even social) phenomenon.
Greek tragedy disguised as fantasy, a classic of modern English literature, and simply an unpredictable and interesting plot – that's all about Harry Potter. And I know what I'll be doing all day on July 21st. Reading, reading, and reading the seventh book again.