The first movie was based on the most popular and well known book of the series. I’m not sure it’s possible for a movie based on any of the other books to do as well as that one.
I do love the book series though. Hopefully this one is done well.
To me, the key to the third film being a success is marketing it to the original audience, mainly Christians, a market that Disney no longer has an interest in marketing to, but still a highly profitable one if the effort is done correctly.
CS Lewis was a Genius, as well as being a inspired writer, his films are important to a Christian Culture, though I’d love to see a “Screwtape Letters” film done properly more so than his Narnia series.
Imvvho that film would really play with it’s “clean shaven cheeks and pressed white collars” narrative.