Dune (2021)

Continuity mistake: When Paul comes to the table three chairs are free, when his father comes there is only one chair free - the third chair is suddenly missing. (00:49:30)

Revealing mistake: When Paul and his father Leto are walking through the field between storage bins/sheds, the sheds are largely situated perpendicular to their path. After they stop walking, the angle of the shed behind them shifts to being roughly horizontal to their path. A front shot of Paul still shows a shed on the opposite side as being perpendicular. The background also changes to blurred, still images of dried grass (with no light breeze). (00:14:09 - 00:14:43)

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Other mistake: When the injured woman put her bloody right hand over Leto's left shoulder, her fingers were initially curved around his shoulder then slid down. The bloody handprint (too "neat") ended up being lower on his shirt/lapel than would be expected and there was no blood on top of his shoulder or smear downward, which would be impossible. (01:18:00)

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Trivia: "Spice" - the most important and valuable substance - is produced by sandworm larvae; the substance produced by the larvae is called "melange."

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Gaius Helen Mohiam: You've proven you can rule yourself. Now you must learn to rule others, something none of your ancestors learnt.
Paul Atreides: My father rules an entire planet.
Gaius Helen Mohiam: He's losing it.
Paul Atreides: He's getting a richer one.
Gaius Helen Mohiam: He'll lose that one too.

Duncan Idaho: They fight like demons.

Gaius Helen Mohiam: One day, a legend will be born. All of civilization depends on it.