Cho actually does reappear along with the rest of Dumbledore's Army at the end of 7 for the big fight. She is also accepted back kind of warmly. I just don't see how she can be accepted back so easily after betraying everyone.
Dumbledore being buried with the wand which is one of the 3 items for the Deathly Hallows.
I already know I wouldn't enjoy the movie. I went to see 5 of them all with an open mind. Being let down each time so yeah I think after 5 let downs I think I am right in my opinion.
Of course you are gonna be let down. Thats why books to movies have to be criticized in a different light.
700+ page books condensed into a 2 hour film. Seriously, if you wanted every piece of the book in the movie, we'd have 14 movies. None of the movies left out any major plot holes. Yes Order of Phoenix, probably the worst of the 5 films still managed to tell the story on the most part. Cho being the one to tell on Harry? So, that wasn't that major at all. She had one little scene in the 7th book.
The movies are great because the actors are great, awesome cinematography, and for the most tell the whole story.
On the subject of Dumbledore, I'm sure they'll cover the wand being in the coffin in the "Deathly Hollows". Two, the funeral while sad, was a very short part of the book. I agree, I would have loved to see the funeral, because Dumbledore was an awesome character and it would have felt right giving him what he deserves, but that one scene left out shouldn't taint the whole film.
Funny how everyone loved Lord of the Rings for it's awesomely close adaptation of the books. Guess those people didn't read the whole book, because they were far off on most of it as well, except the main plot. Lines that Gandalf would say in the book were given to other characters, same for Aragorn. Scenes were ass backwards and tons was left out..yet it was a great MOVIE.
Movies will always be different.
Now, if you just hate the movies because you think they're directed terribly, have horrible special effects, and think the casting call was horrible, well then I can't argue with you at all, because that is just your opinion.