Bouncing Zabaglione Bros. said:
I agree with you. In general, it's a pretty stylish film, and it does add a visual interpretation of the book. I don't understand why people rag on the way it jumps through time, because the book does the same: "For two years Muad'ib harried the Harkonen forces and brought spice production to a halt" is about all that covers two years of rebellion.
I've also recently watched the Sci-Fi Channel versions of "Dune" and "Children Of Dune", and I was surprised by how faithful they were to the storyline books. "Children" is particularly well done, though I suspect both are reasonably incomprehensible unless you have read the books too.
However, having recently re-read all the Brian Herbert Dune books, I don't see how they would ever translate more than the surface story into a movie. The books are full of deep layers - politics, economics, religion, future visions, devious plots, past live memories, resurrected characters, philosopy, sex, secret societies, etc. spread across tens of thousands of years. Dune's entirety is just not suitable to a good film translation. What makes it great it what means it will never work as a movie, and we have to make do with a superficial retelling of the story, without all the depth an nuance that the books give.