The film is shot this fall and the ensemble includes as before Timothée Chalamet, Rebecca Ferguson, Zendaya Coleman and Stellan Skarsgård.
New arrivals are Christopher Walken who takes on the role of the Emperor and Florence Pugh as his daughter.
With its six Oscar statuettes, "Dune" was the big winner at this year's Oscars, where it was also nominated for best film.