Justice League: Origin

We knew from the start that the DCEU would be built on stories from the New 52. Even with all of the references and Easter eggs spanning the entire history of DC Comics, Justice League may be the most faithful DC comic book adaptation.

The Zack Snyder/Joss Whedon hybrid is essentially a Justice League: Origin story. Origin, which was already adapted in the animation Justice League: War, had a different roster of heroes and had Darkseid as its main antagonist.

However, the invasion, Cyborg's origin and troublesome existence, the Parademons, and even the idea of an evil Superman can be traced back to this comic book.

The film’s opening scene, which was among Joss Whedon’s reshoots, is similar to the opening scene in the comic book. Sure, Green Lantern and Superman are absent, but Batman captures a Parademon that then self-destroys, revealing the first hints of a bigger invasion.