AQUAMAN 2 (Patreon)

The mid credits scene... *SPOILERD BELOW*

In the movie, Arthur tells Orm, "Have you never had a cheeseburger and beer?" In the end, Arthur and co forgive Orm and tell people that he died in battle saving them. So Orm is now free but can't return to Atlantis, so now he's in the surface world, and it ends with him trying a cheeseburger and beer.