Well, technically it's not hard sci-fi like The Martian and Interstellar. But yeah, I wonder if they'll make a hit out of this.
Can't wait to see it though.
Kind literally hard (as in
difficult) scifi... Figure it is really hard to translate to film. Visually, not too bad, just need mostly desert and robed people wearing, uh, wet suits, plus mix in some futuristic buildings and one or two space ships. Plot is basically a revenge story, and not too bad in itself. But getting other stuff through... that's another matter.
Like, how does one communicate the feudal structure of the Imperium? Fiefdom's and why Arrakis is a trap? The deeper reasons behind the Harkonnen's plot? And what about the Kwisatz Haderach and the Bene Gesserit plotting, not to mention a subtler one in their everyday role in the Imperium? Or the Fremen and their desire for paradise, and the ecological theme of Dune? The spice allowing for hydraulic despotism? Or a million other things. While avoiding info-dumps, they don't work too well in film medium, in the book they're usually integrated rather well IMO, and occasionally are relevant due to being actually very important to the plot (such as the stillsuit, its importance to the Fremen, and how it truly enables their existence, which in turn feeds into their religion).
No doubt a lot of that can be cut, perhaps. Indeed it might be better to distill Dune down to very few things, though picking few things and focusing on them isn't necessarily simple either.
I expect the film will probably fail (commercially certainly, and as an adaptation probably, critically possibly divisive), as much as i like Villeneuves's films, but i'll be very interested and excited to see what he can do. I am enormous Dune fan and like Lynch's film quite a bit despite all its flaws.