To return to the topic of the LOTR briefly... Robert Gotcher recently posted on the changes in the movies, and I think he's right on.
Most of the changes are irrelevant, but some of them touch important aspects of the story, especially concerning the characters' personalities.
One of my sisters-in-law remarked that the movies don't seem to get Tolkien's combination of tenderness and strength right in the male characters like Aragorn and Faramir, and that seems right. However, I suspect this comes less from deliberate decisions on Peter Jackson's part as it does from the simple inability to conceive of and portray those kind of combinations on the part of Jackson and the actors.
That's my take.