Continuity mistake: The Queen and Euboea are knocked off the horse by Steppenwolf. The Queen is face down, with the scabbard of her sword pointing up and aside of the mantle; next shot and the scabbard is not visible, just the mantle. (00:34:30)
Continuity mistake: Bruce pulls out of his jacket a wad of bills that stands straight upright, is significantly curled down in the next shot, and is more straight again in the following and when held horizontally as the kid nabs it. (00:11:25)
Continuity mistake: The village chief holds the calling card of "Bruus Vein" in a different way in each shot (lower corner, side, lower corner, upper corner). (00:09:05)
Continuity mistake: During the gravedigging scene, Aquaman offers Diana a swig from his flag, who turns it down. Momoa lowers his arm in one shot, and Gadot turns towards the others. In the background in the next shot, Momoa is lowering again his arm, and she is looking ahead. (02:22:55)
Continuity mistake: Alfred notices in his drink the disturbance caused by Superman's approach and pauses his work to stare at it, but in the next shot when Supes lands he is still working on the engine. (03:17:25)
Continuity mistake: Queen Hippolyta turns around and rushes to the rescue of an amazon that was running behind her escaping the Cage; notice how in the wide shot the girl turns from the prone position bringing the sword towards the parademon, but in the close-up the sword is facing the side. (00:29:50)
Continuity mistake: The Amazons are dogpiling Steppenwolf as he tries to reach for the box. One of them in the quasi-POV shot has a big quiver, but when she is sprinting to piggyback him the quiver isn't there. (00:29:00)
Continuity mistake: Clark is thanking Bruce for the house. They both look in the distance at Lois and Martha; there are a couple guys fetching boxes near the carpenter, on both sides of the workbench, but they are nowhere to be seen in the new closer angle. (03:38:00)
Continuity mistake: When Aquaman like a true hero impales the bad guy from behind, Superman in the background is assuming the stance raising his fist. In close-up his arms are both lowered. (03:30:25)
Continuity mistake: Superman is pummelling Steppenwolf, and Darkseid's portal starts appearing. Wonder Woman turns around to face it in two shots; Aquaman in the first shot has the trident standing vertical, it's more slanted forward in the next. (03:24:45)
Continuity mistake: After the underground battle with Steppenwolf when they are finally joined by Aquaman, Wonder Woman sums up the situation with "All he needs now is the Lost Box of Men." Batman replies "If he doesn't already have it" in another shot, where Diana's hair is missing in front of her shoulder. (02:08:25)
