The first thing you’ll notice is that the current movie versions emphasize WW2 a lot more. As in, they consistently remember that there is a war going on.

The strange part is I remembered the war being discussed more in the book than it was. After someone commented to me that it had been barely discussed I checked the beginning of LWW and, of course, they were right. There are a few times when that happened so I can really understand Andrew Adamson's more expansive memories of the story.

They come off as intelligent, well brought up kids who genuinely like each other. It’s a real sibling dynamic, caring intensely about each other even when they’re fighting.

One of the harder things for even talented actors to pull off sometimes is family (or long-term friendship). However I never had any trouble believing that the children were family.

In the Disney version, they actually never speak to each other. I noticed that while I was working on a C/E fic.

That is one of the reasons I was surprised to see C/E fic that seemed to be movie based. (I say seems because I haven't read it yet.)

via meta_roundup, but I think I have seen you around Narnia fandom