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)
Suggested correction: It looks like there are three chairs, but there are actually two.
Other mistake: With all the sand blowing around, Paul, Leto, and anyone else not wearing goggles and a face mask (covering nostrils and mouth) should have been affected, but they didn't even have to blink their eyes. (01:05:25)
Continuity mistake: Paul's bangs often change from pressed to the side to a few or many long strands dangling in front. For example, walking through the field with his father, right side views usually showed no or only a couple thin strands dangling but front views usually showed several thicker longer strands dangling down his cheek. Paul kept his arms along the side of his body and the occasional light breeze cannot explain the variation. (00:14:35 - 00:15:26)
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)
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)
Continuity mistake: When Leto stood up after getting shocked, the location and image of the bloody handprint was different. The bloody handprint was more on the top of his sleeve than lapel, largely comprised of four vertical lines to depict the woman's fingers, and the palm print was less noticeable. (01:18:06)
