Bad link, sweetie. This is going to be a most interesting subject. The boys and I saw a trailer at the last movie we attended. Could not discern any plot line but the production values looked like what Peter Jackson brought to LOTR.
http://www.salon.com/books/feature/2003/12/03/tolkien_lewis/index_np.html
You can get a free pass to read the whole thing,.
You can also read about the "famous conversation" here:
http://www.epm.org/articles/visit_cslewis.html