Jared Leto IS The Joker - Part 9

I think the problem with the theory is because it relies a lot on "it happened in this graphic novel or this video game."
Go back and look at Man of Steel...and what we know of BvS. While there are basic plot points the story followed with other Superman origin films...it 90% did it's own thing. The little that we know of BvS seems to be it's own thing and not derived from any one story...sure it takes from TDKR but it's still it's own story.

 

Everything in all the comic movies pretty much happen in the comics...........with minor/major changes in adaptation from page to screen.