I have studied CS LEWIS and how he was friend with JRT - they were in a writing group together, helping inspire each other and both wrote their famous stories during this time. JRT did not like how CSL mixed up the mythologies. He would have perferred they stay pure; pick one and stay with it. There is much symbology - and not only specific to one --how shall i say this safely -- to one - ah - Way of viewing.

I do like the movie and have seen it 3 times. I will want to see the next installment.
kiya