Stellan Skarsg?rd's body makeup took 8 hours to apply and 2 hours to remove for every day of shooting. He didn't drink anything and took Imodium pills in order to avoid having to go to the bathroom during shooting days.

Greig Fraser, cinematographer of Dune: Part One (2021) and Dune: Part Two (2024), suggested to shoot the sequence on Giedi Prime (the Harkonnen home world) with infrared cameras to give the skin a translucent texture.

Lady Jessica's facial tattoos are the Bene Gesserit litany against fear.

Denis Villeneuve said he will not release any deleted scenes, explaining, "I'm a strong believer that when it's not in the movie, it's dead. I kill darlings, and it's painful for me. Sometimes I remove shots and I say, 'I cannot believe I'm cutting this out.' I feel like a samurai opening my gut. It's painful, so I cannot go back after that and create a Frankenstein and try to reanimate things that I killed. It's too painful. When it's dead, it's dead, and it's dead for a reason. But yes, it is a painful project, but it is my job. The movie prevails. I'm very, I think, severe in the editing room. I'm not thinking about my ego, I'm thinking about the movie."

Feyd-Rautha's fight on Giedi Prime is seen in a black-and-white infrared color palette, apparently induced by a black sun that the planet orbits around. This is the first time the Giedi's sun is shown in a Dune adaptation. However the description in the book of a "planet of the black sun" is likely to be metaphorical, as all stars emit light, and a planet receiving no light would not be able to sustain life.

Continuity

During action scenes, the goggles Paul and the Fremen wear will go from being on during wider shots, to being nowhere to be seen in close-ups. One might think the visors on the goggles are retractable, but there are several shots in which Paul will have his goggles pulled down around his neck.

During the final exchange between Paul and Feyd-Rautha, as a bloodied Feyd is slowly pushing his blade towards Paul there is a brief close up shot of Feyd without blood on his face. His face was previously bloodied due to an earlier blow.

When Emperor Shaddam Corrino IV receives Paul's challenge, he inspects the Atreides seal Paul stamped with his father's ducal signet in the previous shot, opens the scroll to reveal its engraving, and promptly drops it on the ground. The scroll remains visibly open when dropped by the emperor and again in the following shot of Irulan picking it up. However, in the next shot, Irulan quickly slides the scroll open to read it. While this highlights the cool prop, the scroll was already completely open when she picked it up, and she has no reason to partially close it only to immediately open it again.

When Paul is running to jump on the worm on his test, he doesn't wear google. Once on the worm, he has them.

When Gurney and Paul first talk, and Gurney mentions Paul's new name of Muad'Dib, Gurney's arm alternates between being around Paul and not around him, depending on the camera angle.



Incorrectly regarded as goofs

One of the pillars of Dune's Universe is the absence of any type of advanced computers, summarized in the quasi-religious principle of "Thou shalt not make a machine in the likeness of a human mind". The Harkonnen operators are using systems that merely relay information from one place to another, much like the way cameras sent images of the first moon landing back to Earth. It would be easier with the processing units existing in today's world, but computers are not necessary to relay the information from vehicles in the field to controllers at a base. Multiple wars were fought using aircraft, naval vessels, and tanks during the second half of the 20th century in which similar field information went back and forth without the use of computers.

During the first extractor attack, a number of Fremen attacked the Sardaukar soldiers on foot with numerous casualties. Once the ornithopter was shot down, the extractor was destroyed with long distance weapons, rendering the Fremen land attack and numerous losses pointless.

When the first extractor lands on the desert, there is already sand above its caterpillars before they start rolling on the ground. This was presumably left over from when it was last used; on a desert planet, vehicles are unlikely to be jet-washed between operations.



Revealing mistakes

Several shots feature a variety of in-universe solar eclipses while circular lens flaring remains present, typical of shooting against a bare sun. This means the eclipses were added in post while the ghosting present from the regular sun was left in its unaltered ellipse form. The lens flares should be mirroring the visible ecliptic patterns, e.g., crescent-shaped lens flares during partial phases, and other patterns congenial to the more complex dual moon phases.