A few years back when Deathly Hallows Part 2 was about to come out, I hadn't read any of the books, only seen the movies. I had 9 days until it came out, an iPad loaded with all 7 books and vacation planned with nothing specific planned to do in it. Managed to read all 7 books prior to seeing Deathly Hallows Part 2, although my wife wasn't happy with me for completely zoning out to the outside world from 6 in the morning until around 8 at night each day. LOL Unlike most movies, they didn't change a ton from the books, although they did leave out a good bit of stuff that would have really added to the depth of the movies. But then each movie would have been around 3 hours long. Although I greatly prefer the book's ending to Deathly Hallows to that of the movie.