My psychic powers are waning of late. I have no way of knowing whether you'll find them interesting. That, Mr. Holes, is something you'll just have to find out yourself. Go, read, live! I eagerly await your progress reports.

But yes, the movies fail to convey a lot. Tolkien is the gold standard for fantasy worldbuilding. No one has ever come remotely close to the depth of his Middle Earth. That is not to say everyone else pales in comparison, just that no one has ever done anywhere near as much worldbuilding as Tolkien. The movies absolutely do not concern themselves with this because they don't have time for it.