https://www.inverse.com/entertainment/dune-2-first-10-minutes-explained-irulan
While there have been some production-issues, this looks and sounds so good.
https://collider.com/dune-2-first-10-minutes-description-ccxp
https://www.dneg.com/show/dune-part-2 , https://www.dunemovie.net
The real story of Dune in the original books, compared to the Dune movies. https://www.youtube.com/watch?v=R0krUthYxF4
MENTATS (Bio-Computers of DUNE) EXPLAINED https://www.youtube.com/watch?v=ciohgoSKv_U
Dune Sequels Explained https://www.youtube.com/watch?v=hJ658qV-xAg