I must say I do not care for at all the use of things such as the Lord of the Rings and The Chronicles of Narnia and such as evangelistic tools. Unless, of course, you are planning to preach on Isaiah's famous "woe to those who call evil good and good evil." A lot of these movies/books are hardly what I would call "Christian." If they put things such as magic and the like in the positive, as being good things, when in fact, they are not good, and are inheriently evil-- even if highly mythologized and allegorized-- then I believe we are actually doing diservice to God. Fact of the matter is, we are only jumping at such movies because of the "Christian" background of some of those who penned the story. It seemed to matter not to us that J.R. Tolkien was not a Christian, and was in fact, Catholic. Yet, for trying to find "common ground" with the heathen, we were willing to compromise a bit, simply because Catholicism falls under the banner of Christendome, and promote Tolkien as being a Christian for the sake of mentioning it to somebody as a hope of making some sort of bridge.As far as I can tell, CS Lewis seemed very much to be a Christian. He had some wonderful insights, and is ever quotable. However, I think sometimes we toss discernment out the window, and because of the popularity of some of these authors and their works, we tend to embrace a lot of rubbish that some of these authors brought into their works. For example, "The Great Divorce" by C.S. Lewis has a lot of powerful imagery, and is extremely thought provoking, yet is something how the Christian Lewis decided to pepper the book with a bit of profanity! As a literary work, it is no doubt brilliant, and philosophically, it is amazingly stimulating, but as far as providing edification for the Christian, I think such stuff should be strongly avoided. Yet, The Great Divorce and such is considered essential reading by many for Christians, when in fact, it's containing entirely unjustifiable profanity makes it a non-Christian work.Brothers, let's use a little more discernment. It's sad that we have to water down and compromise for the sake of a chance of witnessing. If a movie or book or song glorifies something contrary to the gospel, there is nothing Christian about it. It only contains the forms of Christianity. If you really want to reach the loss, go stand in front of your local cinema and preach against the ungodly parade of images and sounds that people are are gazing upon in the name of entertainment, things which people declare are good, yet God says "woe" to. As Keith Daniel once said, if you try to win the world by becoming like the world, the world will only win you. (note: I'm not against Christians going to the movies, just against Christians seeing movies that glorify ungodliness)