The sci-fi channel did a better version of Dune but it would take a big budget and an inspired director to do the book justice. But it can be done; I thought that the final movie of the Lord of the Rings trilogy was better than the book. “I bid you stand Men of the West” . . . even the writing was as good as Tolkien’s, imho.
The 1984 movie version was such a crashing disappointment because it had such great actors in all the lead roles.
Everything else about that movie was such a joke, however.