Unlike 'The Lion, the Witch and the Wardrobe,' the movie version deviates significantly in certain places--though I'm pretty neutral in terms of my preferred version. I don't necessarily disagree with the creative liberties that were taken. But more importantly, I don't believe that the movie failed to convey the essence of the book.
Again, the allegorical tale is engaging and beautifully written classic fantasy--with touches of both Christianity and European mythology. The descriptions are lilting and beautiful. The wisdom conveyed is timeless and elegantly worded.
This reader's favorite aspect would have to be the pronounced character development in Edmund between this book and the previous one. Leave it to Lewis to create a personality I initially want to see killed off and not only redeem him, but turn him into the one I can most relate to.