I agree with most of the rest of Antonio's take on this movie, although I think that Children of Dune is a weak enough book outside of the stuff with Paul that I'd rather Villeneuve just move the Preacher to the end of Part Three.
Oh, interesting. I'm planning to read the first three books over the next year or so in order to find out for myself, but the way I've seen it described,
Children of Dune felt like it had maybe the most compelling story. Not just for Paul but for Alia's tragedy and just the sheer terrifying ominous note of Leto II going further than even Paul at his worst never could. Of course, there's concept and then there's execution. Gonna be fun to see how all three books hold on on that level.