There is a crucial detail you are missing.
I have not seen this or any other Bat Man or Supberb Man film hence I have absolutely no idea what you are talking about.
I have however watched MANY HOURS of porn.
Based on this it is my INFORMED opinion that Porn of Justice is what this movie should be called.
My password is password.

I respectfully disagree. Porn of Justice just tells you it's a porn movie. Porn of Justice doesn't even make sense. Maybe if the Justice League had already been set up you could get away with that.
Dong of Justice is about two competing ideologies for crime prevention. Despite their wildly different backgrounds the alpha males settle their differences by aggressively ****ing each other in the ass until they see that they really aren't so different after all. It's a beautiful story.

Dongs are an element, yes.
But Porn encapsulates the entirety of the project and also rhymes with "dawn".
Hence the concise genius of the idea.
My password is password.

Dong of Justice