I will take them as seperate issuse.
Harry potter book vs movie.
The book was great a fast very interesting read. The fist 2 movies were 99% in line with the books. There were several admissons and a few restaging of events but in a character said something in the book they said the samething in the movie very good translation to the screen. The 3rd book, while 80% true to the book, still the characters still had their ownlines from book to movie. The only very blaring rewrite was at the end of the 3rd movie when Harry gets is new firebolt and any one who read the books knows that the firebolt is a gift that should have come in the middle of the film soon after Harrys nimbus is broken.
The 4th and 5th movies that are upcomming I think will be the worst for ommisions due to the length of the book vs filmable movie time.
I really don't mind ommisions in book vs movie it is the rewites that I hate. I really don't mind adding something to the movie that wasn't in the if it is seculation on what characters out of the witing might be doing as the main writing is taking place.
The 3 recient LOR movies were aboinations. The first one is allright it is about 75% true to the book. I can watch this one with only an occsional crap being yelled at the screen. The rewriting was that bad only a few characters had other characters lines and sceens. The other 2 movies well let's just say the characters and some of the dialoge was written by JRRTolkien but not the rest. TT and ROTK were 15%, and thats a little high, true to the books. The rewriting and recharacteriztion is extreamly bad in both movies.I can't even watch them. An example of recharacteriztion would be Faramir's character. Faramir in the book is the noblist character in the book he doesn't have a struggle with the ring, he doesn't treat the hobbits like orcs, and he is not the sniveling little " I need daddies approval" type. Denethors death is another sore point. In the book Denethor jumps on the funeral pyre with the palantier in his lap and burns to death. Gandalf does not attack him. Gandalf does not fight him and knock him off a cliff.
I could go on and on the movie is a very beautiful and well filmed but the books and the movie must stand apart for neither is the other. If I had never read the books I would think the movies were great.