6. Batman: The Long Halloween
An animated double feature based on Jeph Loeb’s iconic comic books of the same name where a killer called Holiday kills people on special holidays. As Joker breaks in to Harvey Dent’s house to deliver a message, he re-decorates their Christmas tree with Joker masks while singing altered lyrics to “Deck the Halls”, which ends with “This season is a killer”. But is the Joker the real Holiday killer?
