I have not read the novel, but I felt from the film that it was crystal clear that learning the alien writing system was what gave Amy Adams' character the know

I have not read the novel, but I felt from the film that it was crystal clear that learning the alien writing system was what gave Amy Adams' character the knowledge her daughter would die. And yet, when I think about Dune 2021, I feel like it lacks a lot of interesting context and explanation from the novel. But I know plenty of people who didn't read it and loved the film. I suspect DV takes more care to lay out the important details than I'm able to perceive knowing the book.