Naya Rivera's final film role.
This is the fifth animated Batman movie to receive an R rating after Batman: The Killing Joke, Batman: Gotham by Gaslight, Batman: Death in the Family, and Batman: Soul of the Dragon.
Inspired by the iconic mid-1990s DC Comics story from Jeph Loeb and Tim Sale.
Unlike other Batman movies, Alfred refers to Mr. Wayne as "Sir" and not "Master Bruce."
Two-Face is still fresh from his trauma and scarring, so there's remnants of Harvey still prevailing. The last scrap of good in him has Two-Face willingly surrender to Gordon and Batman.