Before watching the movie:
It seems like this is Jules Verne’s most-adapted story, and it’s widely different from version to version. That’s probably because from what I remember of the book, there isn’t so much plot as an excuse to go on a low-tech sci-fi adventure. Exotic locations, exciting science, and fights with dinosaurs. If anyone else had been doing what Verne was doing at the time, we might consider him a pulp author.
So coming into this, I’m mainly expecting some high-budget, relatively innocent excitement. The blockbuster movie of the 1950s. I’m also interested in seeing how much of the parts of Verne’s book that aren’t “dinosaurs underground” still remains.