Batman V Superman: 13 Biggest Blunders Zack Snyder Makes That Completely Ruin It
6. Batman And Superman Kill... A Lot
"I won't kill you. But I don't have to save you." With that one line Christopher Nolan somewhat unwittingly introduced a get-out clause that has had a toxic influence on all subsequent appearances of famous non-killers Batman and Superman. In the later instalments of The Dark Knight Trilogy, the Caped Crusader committed several acts that would most probably result in the victim being killed and was active in the death of Talia al Ghul and her truck driver, then Man Of Steel Superman was defined by his snapping of Zod's neck.
But those look morally clear compared to what's in Batman V Superman. Suggestive dream sequences aside (where this sort of thing can allow for an interesting assessment of the characters), throughout the film the duo are carelessly behind a raft of murders; Superman does it in his first scene and Batman barrels about in his Batmobile blowing up cars and tricking goons into shooting each other.
The "one rule" ethos is passingly raised too, so it's not like Snyder's presenting alternate versions of these heroes either; it's complete and utter oversight, a laziness to not commit to some of the character's most base traits. Comic accuracy isn't always need to make a great comic book film (see Iron Man 3), but this element is just too integral to miss.