The movies left so much out.I wish there were 2 parts for every book!) But seriously, they could have soooo included Charlie Weasley. Not that hard to have put him in GoF with the dragons or at Bill and Fleur's wedding.
Luna Lovegood and Harry Potter. I am glad that Harry and Luna never got together. I loved watching their friendship blossom. Her friendship and unfailing support and different perspectives on life were exactly what Harry needed