The trailer used two different cameras on purpose. Denis Villeneuve shot most of Dune: Part Three on 65mm film for the first time in this trilogy, then kept the whole desert on digital because he wanted it to look brutal, not beautiful.
That reverses what the first two movies did. Dune and Dune: Part Two were shot entirely on digital IMAX cameras and printed onto film stock afterward just to fake the texture. Villeneuve flipped the process for the finale. Film covers the palace intrigue and the quiet scenes between people. Digital covers the desert planet itself, because in his own words, the digital captures "the brutality" that film would soften.
That option exists because of a different director's camera problem. Christopher Nolan pushed IMAX to build a new generation of lighter, quieter 70mm cameras for his own film, The Odyssey, which opens the same month as this trailer. Villeneuve is among the first directors to use the hardware Nolan's production forced into existence, and he pointed it at the tender moments while the sand stayed digital.
None of this cost more money. Dune: Part Two's reported budget was $190 million. Dune: Part Three hasn't had an official number confirmed, but early estimates put it in the same range, nowhere near what a big blockbuster this size usually costs today.
A flat budget paired with a more complicated shoot means every choice gets rationed, screen time included. Rebecca Ferguson played Paul's mother across the first two films. In the third, she was nearly written out completely, and Villeneuve told her he needed exactly one scene from her. That is the scene she got. The warmth in the shot above and the harshness of every dune in this trilogy both came from two separate decisions, made with two different cameras, months before either one was ever pointed at an actor.
Which is why I push back against the idea that our social values are warped simply because we are poor.
The deeper problem is that good character is not consistently rewarded or respected, and bad character is not reliably shunned or punished.