- Foe Yay:
Vampire!Joker: Batsy... You complete me.
- Inferred Holocaust: Vampire Joker and Batman have a brawl in a blood bank, Joker drinking gallons of it and even more being spilled in the process. Considering blood supplies are in short enough supply in the real world, that means hundreds, if not thousands, died because of lack of transfusions.
- Hilarious in Hindsight:
- Narm: The "reveal" that Alucard spelled backwards is... DRACULA!
- What Do You Mean, It's Not for Kids?: While definitely lighter in tone than the later DCUAOM movies, the fact that it was based on (the kids friendly) The Batman caused Toonami to mistakenly give it a TV-Y7 rating during its first airing and only later upgrading it to a (much better fitting) TV-PG.