As I sit here stretching and grading exams, I'm really glad I took the time yesterday to see the Return of the King, if for no other reason than it gives me something "rant" about. ;-) (Warning: There are some spoilers ahead. If you haven't read the books or seen the movie, you may not want to read this. Hell, you may not want to read this anyway.)
As a purist, my reaction to this movie is that the MOVIE of the Lord of the Rings, The Return of the King is to the book of the same name much in the same way that tepid tap water is to a steaming cup of British-style tea. To put it another way, yes, the movie was set in a place called Middle Earth and there were some people with similar names as to those in the books by Tolkien and there were even some similar events, well, a few similar events. Beyond that, I'm hesitant to say that they are related.
Now, in all fairness, the movie taken wholly on its own, was a good movie. It had action, adventure, romance (kind of) heroic deeds, and some kick-ass special effects. (See mûmakil squish horsie.) It had some great one liners and a few stolen lines from one of my favorite set of movies, the original Star Wars trilogy. (A battle field with a wonderful death scene: A: "I'm going to save you." Dying T: "You all ready have.") Unfortunately, the movie failed to capture the essence of what Tolkien wrote, at least in my humble opinion. Both Théoden and Denethor were, in the books, great men with outstanding senses of honor and justice. Lord Denethor was, in part, corrupted by his contact with the Dark Lord Sauron, but still held his honor from a certain viewpoint. In the movies, both were portrayed as sniveling, whining, haughty, egocentric (though Théoden was eventually portrayed as a good and mighty king) ne're-do-wells. Apparently Mr. Peter Jackson didn't think that the general public could see the subtleties of the corruption of Denethor in Tolkien's works. He had to change them, magnify them exaggerate them and in so doing, turn interesting three-dimensional characters with good and decent motives (or at least human motives) into one-dimensional characters that exhibit ONLY the negative traits. *sigh* Oh well. Maybe he was right. Maybe the general public can't catch those subtleties anymore or maybe they don't want to have to think when going to a movie. Obviously, a lot of people like the movies considering the amount of money the three have brought in already.
This isn't my only gripe, either. There were tons of things that were changed purely for the benefit of the movie and many more that were changed for no reason I can imagine. For example, in the scene at Mt. Doom, why did Frodo put the ring on the index finger of his left hand? In the book, it was the ring finger (or third finger - wrong in the movie no matter how you count them) of his right hand. Why was Gandalf portrayed as mortal when in truth, the only two in Middle Earth who could have touched him were the Witch King of Angmar (King of the Nazgûl, etc.) and the Dark Lord Sauron? Why did Denethor go running off the edge of Minas Tirith instead of dying with resolve as he did in the book? Why was the Shire in perfect condition when the travelers returned? Why were Sam and Rosie at #3 Bagshot row instead of at Bag End? Anyway, the list goes on (and on and on and on).
Well, back to grading. I may expand on this later or I may just mark it off as pointless and futile.