Kind of funny how they try to focus on contemporary-ish Superman stories with the exception of "Death of Superman" while they kept going back to 1980's Batman. Then again, I think 1980's Batman was probably Bruce Timm's favorite era so that's why we not only got adaptions of "Batman Year One," "The Dark Knight Returns," and "The Killing Joke," but they went out of their way to be as close as possible to panel-for-panel while everything else gets slight modifications.