I quite like many of David Lynch's films... but Dune was not one of them. In part, no doubt, this is due to how disappointing it was after having read the books.
Personally I love the film, and I cannot quite decide whether I "really" love it or love it in the way we all love
Plan 9 from Outer Space.
Gotta say, if I had first read the novel, I'd probably also have hated the film.
I do share the general liking of Lynch's films.
Personal anecdote: a friend and I went to see
Mulholland Dr when it first came out. It was in one of those artsy theaters, and we were lucky in that we had seen it reviewed on TV, in which the reviewer explicitly warned audiences not to try to immediately "understand" everything - it was simply not that kind of film. For a first viewing, he suggested, just go with the flow. Immerse yourself into a pretty weird universe, and think about it later.
As you no doubt know, "weird' is an understatement. Also, perhaps surprisingly, some of the most deeply funny bits of of film in there that I have ever seen, despite the overall dark tone.
Anyway, when the film ended, the entire audience just sat there for a while, in a kind of daze. And then something happened which we haven't seen in film theaters since the 1950s or thereabouts: the entire audience broke into spontaneous applause. Blown away.
They somehow just don't seem to make films like that anymore.
As I recall, it was the film that put Naomi Watts on the map: her acting was a tour de force, so brilliant that apparently, many people did not initially realize that the two different versions of the character that she played in the two halves of the film were in fact played by the same actress.