While attempting to steal a Mother Box, Steppenwolf used a Boom Tube to enter the vault and was faced with several Xebellian Soldiers, Aquaman and Mera. However, Steppenwolf prevailed, causing Aquaman to join the Justice League to put an end to Steppenwolf's plan.
- In Justice League, the Atlantean Vault appeared to be located in Atlantis. However in Aquaman, Arthur Curry mentions several times throughout the film, he had never been in Atlantis before, which confirms that the vault is in another location. Director James Wan explains. “It wasn’t Atlantis. I spoke with Zack Snyder, early on, and Zack mentioned that the location that Aquaman swims to in “Justice League” is an outpost. So when he told me that was his idea, I was like, “Oh great, then I can actually have Arthur go to Atlantis for the first time.” That’s very important for me, because he can go into it and have a wide-eyed approach to Atlantis and be in awe of it. I think that’s very important from a storytelling standpoint because the audience gets to experience Atlantis for the first time along with the character.” Furthermore Wonder Woman states a mother box was "entrusted to the Atlanteans", who kept it "sealed and guarded in a secure stronghold". Nowhere is it mentioned that the Mother Box is kept actually in Atlantis itself.
- In Justice League concept arts, the Vault was originally guarded by Fishermen instead of Xebellians.