I originally prompted this over in the non-DCEU prompt thread, but I'd also really love to see a DCEU take on this trope. Clark Kent impersonates either Batman or Bruce Wayne. Clark's a good actor, but he's not THAT good. His impersonation goes awry, and shenanigans ensue. Up to the filler to be Clark/Bruce or just focus on their friendship.

+Bonus: If Bruce doesn't sign off on the impersonation and/or doesn't know Clark Kent prior to the impersonation.
+Extra Bonus: If it happens on a cruise ship.

Inspiration: http://i.imgur.com/AraTzxj.jpg (American Alien #3)