A pooper doesn’t do this movie justice. It should be seen on the big screen, with the worm-riding scene as a spectacular highlight.
Paul (Timothee Chalamet) and Reverend Mother Jessica (Rebecca Ferguson) are actually Harkonnen. Reverend Mother Jessica is Baron Harkonnen’s daughter. Paul learns this after drinking the Water of Life which makes him the Kwisatz Haderach, a male Bene Gesserit with memories of both male and female ancestors and the ability to see the future.
Reverend Mother Jessica convinces the Southern Fremen that Paul is the Lisan al Gaib, a Messiah that will lead the Fremen on a universal JIhad.
With the Fremen’s help, both the Harkonnen’s and the Emperor’s troops (Sardaukar) are defeated, and Paul reclaims Arrakis in the name of House Atreides.
In the throne room of Arrakeen, Paul kills Baron Harkonnen (Stellan Skarsgard), and holds the Emperor (Christopher Walken) and his daughter Princess Irulan (Florence Pugh) prisoner. Paul defeats the Emperor’s Champion Feyd-Rautha (Austin Butler) in a duel, and Paul threatens to destroy the spice fields with nukes if the other houses do not accept his ascendency to the Emperor’s throne. When the other houses refuse, Paul sends the Fremen to begin their Jihad. Paul agrees to marry Princess Irulan which breaks Chani’s (Zendaya) heart. She does not go off-world with the Fremen. She summons a sandworm and rides off alone into the desert.
In other news: Margot Fenring (Lea Seydoux) is carrying Feyd-Rautha’s child. Gurney Halleck (Josh Brolin) survived the massacre and kills The Beast Rabban (Dave Bautista) during the Fremen uprising. Jessica’s daughter Alia is not born, but communicates with both Paul and Jessica from the womb, and we get a cameo of Anya-Taylor Joy of Alia as a young woman.