It's a magical world

I just saw this the other day with a friend, and feel much the same way. From what we can remember of the book (neither of us has read it recently), stuff wasn't so much added in as played way up -- but the truth is, Dawn Treader as it's structured in the book wouldn't make a very good movie. It's too much "this thing happens, and then another thing happens, and then they get to the edge of the world," without a through-line except Caspian wondering what's out there. They did a decent job of figuring out how to take the existing material and give it some forward momentum; I say "decent" because it didn't offend me, but neither did it really impress me. (For a variety of reasons, I think, ranging from not having a close enough sympathy with the characters to them replacing Harry Gregson-Williams with David Arnold for the score. Arnold can be fine, but this one really sounded like he phoned it in.) I do very much like the way they keep reminding you it's WWII, though, because that's central to my thoughts about Susan, and the rest of the Pevensies more generally.

As for the Christianity . . . as I said to my friend afterward, that would have really offended me if they had shoehorned it in, or if this had been an original property, but I don't feel like it's a misrepresentation of Lewis, so. I winced a bit when they went past "in your world, I have another name" to club you harder with the idea, but it didn't bother me that much.