A bit of interesting trivia: In the recent Lion film, there is the scene where the children are sitting indoors at the professor's estate due to the rain and war news is coming over the radio. The voice on the radio is Doug Gresham, Lewis's step-son.
I've been a huge fan of the Narnia books since I got them as a Christmas present at age 6.
And really I think these movies are about as good as it gets film-wise. The Narnia stories are hard to translate to film.