Which Iconic Pieces of BATMAN Lore Aren't From the Comics? - Nerdist

Many important characters and lore from Batman mythology came from other media besides comics. And some are quite surprising.

Weird Science DC Comics: I Am Batman #10 Review

Cesar Romero - News - IMDb

Is there a dark version of Superman? - Quora

Which Iconic Pieces of BATMAN Lore Aren't From the Comics? - Nerdist

Review: FUTURE STATE: THE NEXT BATMAN #1 by John Ridley - Comics Grinder

I find it funny that in the original comics, Batman's no kill rule simply didn't exist (DC Comics Issue #37) : r/batman

The 10 Best Batman Stories (That Aren't Even About Batman)

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Batman: The Art of the Dark Knight: The Master Race: 9781401267384: Miller, Frank, Kubert, Andy, Janson, Klaus: Books