"Perhaps nothing should be allowed to remain private. Perhaps privacy is an affront to the rights of the people. But I don't think so."
What are you talking about? This has nothing to do with privacy. Tolkien sold his books publicly and then sold the rights for the movies.
We can certainly argue about the quality, and correctness of the films, as well as the due compensation to the Tolkien estate. But privacy, really?? It's not like hollywood execs snuck in and recorded these bedtime stories in the dark. They were sold by their owner.