Revealing mistake: When Orm presents the weapons to Manta as a water hologram, Manta walks right through the hologram with half of his body. This arm passes through the hologram made of water and even makes a splash sound. However, there is not a single drop of water on Manta's completely dry clothing after this.
Aquaman (2018)
1 revealing mistake - chronological order
Directed by: James Wan
Starring: Nicole Kidman, Dolph Lundgren, Amber Heard, Jason Momoa
Continuity mistake: When Black Manta gets the gold coins from the Atlantians the bag falls in front of him but in the next shot the bag is behind his feet.
Orm: You were the reason our mother was executed. And I've hated you for it ever since. But I do not want to kill you, Arthur. I am going to give you one chance. Go home. Do not ever come back to Atlantis. You are not going to win this. A war is coming to the surface whether you like or not. And I am bringing the wrath of the Seven Seas with me.
Arthur Curry: You know I can't let that happen.
Orm: I know.
More trivia for Aquaman
Question: How did others find the trident's location? We know Arthur is the first person to see the clue to the trident's location, so why are there dozens of skeletons of past victims, how did so many others magically stumble across the trident?
Answer: You said it yourself some might have stumbled upon it, others could have used the map, which is why it was hidden in the first place.
How could they use the map when Arthur was the first to find it...quite frankly to stumble on it is impossible, you would have to randomly travel to the trench, go through the entire kingdom, see a tornado of death and decide to go in, get spat out and not eaten, get to shore, check behind a waterfall and follow it down...bit much?