As unlikely as it may sound, the cinematic versions of the girls in "The Order of the Phoenix" overshadow their literary counterparts.
Ginny Weasley comes off more powerful than she does in the book.
Luna Lovegood still comes across as a very unique person. Not crazy, just different, and a vault of wisdom and encouragement.
Cho Chang deserved a better fate.
It's hard to believe Cho Chang was the object of Harry Potter's affection. Those who have not read the books will be shocked and outraged at how Cho Chang is depicted in the movie.
Regardless, Harry stil should not have kissed her. He should have kissed Luna Lovegood. After seeing the movie, it is clear she connects with Harry on a number of levels. She is the one Harry should be most attracted to. Not that Cho Chang isn't attractive herself, but it seems Luna and Harry share a closer bond in the movie version of their characters.
The movie version of "The Order of the Phoenix" has a bunch of holes. Namely there is no quidditch, no howler to Aunt Petunia and Hermione and Ron don't become prefects, all key points in the book.
But what it lacks in quidditch, prefects and letters, it makes up for in prophecies and the battles at the Department of Mysteries.
It looks like turning an 800-page book into a two-hour movie was a little more difficult than the screenwriter wanted to admit. But the important parts of the book are told in the movie. Harry learns to trust his friends. Dumbledore's Army is formed. And Lord Voldemort reveals himself to the Ministry and his doubters.
Now waiting for "The Deathly Hallows" to come out is going to be like writing with one of Dolores Umbridge's quills. Torture.