Also, I'm 200 pages in, and the attack on the keep have still not happened. One of the things I dislike about Denis' movie is how we barely spent any time with the characters before they are taken from us, and how quickly the invasion is dealt with. Also wish they had dealt more with Yueh and his conditioning. Just one of a few problems I have with the movie currently. I can't get myself to love it. I don't hate it, I just find it decent.
This is something I thought the old Sci-Fi miniseries did rather well. While it opens with them already en-route to Arrakis, and we never actually see Caladan, at least it gets them established on Arrakis and includes the banquet scene. I can see why it's cut given the structure Denis went with (and the fact that any exposition in it would have been wasted had Part 2 not been green-lit), but overall the first movie leaves the second film in a precarious position of making the final act harder to care about without the proper political setup.
I honestly actually liked the characterization of Jessica in the miniseries more than in the film too, though I have no idea which is more true to the novel since I'm just now about to start reading it for the second time after two decades.