Batman: The Dark Knight Returns

Part 1:
Batman: The Dark Knight Returns is a two-part animated film.
Part 1 was released in 2012.
Quite a dark entry with Batman/Bruce Wayne is now considerably older.
Interesting little threads that fills the first part including Harvey Dent and the Mutants.
All this as we introduced to a new Robin, a female one.
A particularly amusing moment came when the news anchor read what had happened to Commissioner Gordon.
Pretty good cliffhanger by who turns up at the end.