I read Dune years ago now and have only seen part 1. I may misremember the book some and that may be affecting my personal feelings of it but I’ll give my input nonetheless.
Pretty much, I feel Villeneuve and his team have done the most faithful depiction of the first part of the book to date, in terms of matching mood and description of the spaces, as well as the behaviors exhibited by characters. the scenes that really drove this home for me were the hunter seeker in Paul’s chamber and Jessica’s interaction with Shadout Mapes. Unfortunately much of the relevant exposition which explains the details of the situation are missing, since they’re internal monologues of Paul and Jessica.
I can’t blame Chalamet for his acting here. Paul shows Jack shit in the books and you mostly get what he’s thinking and feeling, once again, from his thoughts. In this case, Chalamet is being pretty faithful to Paul’s demeanor in the books - whether he means to or not. I do remember him being alittle more expressive in the second part of the book, so it’ll be interesting for me to see if that comes across in part 2.