From scifi.com
Susan Sarandon will headline the cast of the SCI FI Channel's upcoming miniseries sequel Frank Herbert's Children of Dune, based on Dune Messiah and Children of Dune, the second and third novels in Herbert's six-volume saga. Sarandon will play Wensicia, a ruthless princess eager to restore her deposed family to the throne, in the six-hour miniseries, which is the sequel to last year's Frank Herbert's Dune.
Other cast includes returning players Julie Cox as Princess Irulan, Barbara Kodetova as Chani, Ian McNeice as Baron Harkonnen, P.H. Moriarty as Gurney Halleck and Alec Newman as Paul Atreides. New additions include Alice Krige (Star Trek: First Contact) as Lady Jessica, Edward Atterton as Duncan Idaho, Steven Berkoff as Stilgar, Jessica Brooks as Ghanima, Daniela Lunkewitz as Alia and James McAvoy as Leto II.
John Harrison (Frank Herbert's Dune) adapted Herbert's books. Greg Yaitanes (The Invisible Man) will direct. Frank Herbert's Children of Dune is scheduled to begin production on April 3 in Prague, with a four-month shooting schedule, and is slated to air in 2003.
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It's been a long time since I've read Dune. In which book did Paul start turning into a worm and which book did Duncan get made into clones? Weren't those the later books? I didn't much care for the later ones, only the first 3.

Jedi from the Land Between Two Rivers