I don't know; I love all the books and probably should be added to the ping list (Retrokitten, you there?).
I've read all of them, very slowly, to my oldest son out loud at night. Takes us months to go through them, and we relish every bit. I think at the end of the last one, I grabbed it and finished the last 50 pages on my own, and then gave it back to him. :)
The movies are fun, even if the actors are growing twice as fast as the characters (seeing that there is a 2 year rotation of movies).
Yes, that was obvious (and funny) in the most recent movie. The young man who plays Neville Longbottom is very tall, now!
Sorry! I was offline yesterday.