Why does anything happen in Dune at all? The short answer is that the planet Arrakis, AKA Dune, has a substance called “the spice,” which allows the Guild Navigators to safely move spaceships through the space-folding technique of the Holtzman engines. Without the spice, these mutated humans wouldn’t be able to get the ships through space safely. And without the Spacing Guild and the Navigators, the commerce of the Dune universe would collapse. However, interestingly, Denis Villeneuve’s first two Dune films have kept the Spacing Guild in the background. But all of that has changed with Dune: Part Three.
The latest full-length trailer for Dune 3 not only doubles down on some plot twists with Paul (Timothée Chalamet) and Chani (Zendaya) but also suggests a few other changes from the second novel, 1969’s Dune Messiah. Some of those possible changes involve the shapeshifting Face Dancer named Scytale (Robert Pattinson), who, along with Princess Irulan (Florence Pugh), is engaged in a plot to overthrow the rule of House Atreides. But there’s another co-conspirator in this scheme, and it's a member of the Spacing Guild, a crucial character hiding in plain sight in Dune 3.