So many people think they'd want a 6-hour-long Harry Potter movie that covers every single of the details of the books with no variation whatsoever. Not to be contrarian, but I believe this is a delusional take. Film and literature are two completely different mediums. Nobody really wants the exact details of Harry Potter played back at them onscreen like nobody would want a 129-part BBC "miniseries" of War and Peace.
There are some plot points of the Harry Potter books that I wish they'd include in the movies. It would've been nice to get a more fleshed-out look at Voldemort's childhood in Half-Blood Prince, and as silly as it sounds, I wish there were more focus on Gryffindor winning the Quidditch cup in Prisoner of Azkaban.
Whether sparked by a love of the movies or the books, hundreds of hours of Harry Potter content inspires so many hilarious memes. If you have only seen the movies, reading the books might help you understand some of the following memes.