I can recall cringing when watching the special features on the Two Towers DVD, when Philippa Boyens explained how they just HAD to change the character of Faramir, because it didn't make any sense that he could withstand the lure of the ring. It made me think of Tolkien's letter on the proposed film adaptation from the 1950's, and what he said regarding Zimmerman's presentation of the Balrog, and I couldn't help but imagine Tolkien saying, "B. may think she knows more about Faramir and the nature of the ring than I do, but she cannot expect me to agree with her."