Casting features a diverse ensemble fitting for a sprawling sci-fi universe, including Zendaya as Chani, which some critics label as DEI-driven race-swapping but feels organic and was not a major point of controversy, with the film even facing criticism for insufficient Middle Eastern/North African representation. Character changes, notably expanding Chani's skepticism toward religion and Paul's leadership to make her a more 'independent' voice, draw accusations of feminist 'girlboss' tropes and anti-colonial messaging, deviating from her devoted role in the book; however, these alterations influence a subplot rather than the foundational premise of Paul's rise and Fremen unification.

Director Denis Villeneuve emphasized women's roles (e.g., Bene Gesserit) more than the book and aimed to voice doubts about messiahs, but no explicit activist intent or lectures on systemic oppression appear. Niche backlash from book purists and anti-woke commentators highlights these tweaks as 'woke intrusions,' yet the film's massive commercial and critical success demonstrates broad appeal unhindered by ideology, prioritizing spectacle and narrative over preaching.