Dune: Part Two thrilled audiences around the world by bringing Frank Herbert’s seminal science-fiction story to life, but despite its fealty to the novel, Villeneuve’s film wasn’t afraid to make some changes. As with any adaptation, some alterations were necessary in order to remove many of the more unwieldy aspects of Herbert’s book such as the troublesome character of Alia Atreides. However, while these tweaks often sparked controversy among the fanbase, one change concerning Zendaya’s character, Chani actually helped improve the narrative.

https://screenrant.com/dune-2-movie-change-chani-detail-book-story/