I've just seen the film! I enjoyed it enormously, sets special effects and acting were all excellent. In those respects it's much better than the BBC version. The actors seemed to fit the parts better too. The BBC version is more faithfull to the book, but both heavily toned down the religious elements.
In particular missing out mentioning the Deeper Magic really detracted from the deeper meaning Lewis intended so I was rather annoyed at that. But of all the film/TV adaptions of LWW it's the best there is so far