Greetings!
The set that I have presents them in chronological order (Magician's Nephew first - MN, LWW, H&HB, PC, VotDT, SC, LB), and has introductory bits that seem a bit strange out of place. I typically read them in the "conventional" order (LWW, PC, VotDT, SC, MN, H&HB, LB).
As for the movies, I did not know they were remaking it. I know that there are a rather interesting set that is out on
DVD. Granted, by today's standards, the production is, uh, low budget. Think Dr. Who meets C.S.Lewis, and you are on the right track. In fact, Tom Baker plays Puddleglum in the SC...