Dune: Prophecy's Jade Anouka teases Sister Theodosia (Theo)'s devotion to Valya, her mysterious past, and how she'd run the Sisterhood.

Emily Watson, Olivia Williams and Mark Strong star in a visually grand six-part series, which takes place before the events of Denis Villeneuve’s blockbusters and focuses on a scheming drama surrounding the Bene Gesserit.

A long-gestating prequel, about the women who seek to guide a galaxy, is splashy, somber and insufficiently spicy.

The biggest problem is the problem that plagues seemingly all prequels: the fact that no matter how far back in the past the story might go, imaginations can only stretch so far. Once again there is a conflict between the Harkonnen and the Atreides families (the novelty here being the Harkonnens get more screentime),