It wasn't until after I read the books that I found out there was supposed to be so much Christian symbolism. I truly didn't think about it much when I was reading them...seems weird, now, because there's so much.

As to the humblest human being Master--I could see that, except first the kids weren't all that humbel (heh) and second, wasn't Aslan supposed to be a Christ figure? So all the other animals are lower than humans, but the lion is higher? Or what?

I did like the movie though. It's easy to watch without feeling preached at. I think they were careful about that--they don't even use the word "Christmas" when Father Christmas shows up (which I thought was rather silly. Almost like they were too careful). If you enjoyed the story with your son, you'll probably enjoy the movie. Just don't hope it's better than the books (which I was secretly hoping for!)