Read for the fifth or sixth time. This one kills me. It's probably my favorite of the movies, because I think it does the best job capturing the feel of the book, and it's such a suspenseful part of the story. And of course, Fred and George's big scene is legendary, another one of my favorites. 
 One downside: As proud as we are of great women in this series, there's actually quite a lot of subtle sexism, and I think this book is where you see it the most. Every few pages toward the beginning of the book it's "that Grubbly-Plank woman" this or "that Umbridge woman" that, and let's be honest, people just don't ever talk about men that way (and it's certainly never a positive thing). Plus it's always Hermione or the other girls screaming, covering their mouths, clutching someone's (a boy's) arm, gasping, etc., and there's plenty of that in this book too, while I guess we're supposed to assume that the boys are all stoic and brave. Anyway, I was just aware of it, and it was a tiny little disturbance in my enjoyment.