Top 5 in Top 10 best comics about Batman that have not been made into a movie.
Batman: The War Of Jokes And Riddles is probably the pretty comic book installment of Tom King's nearly one hundred issues of Batman, it's not just about Batman/Cat-Man or his battles. against Bane, though those conspiracies still underpin the series.
It features Batman's collection of suspects caught up in a fight between the Joker and the Riddler. There are a number of reasons why this series will never become a movie: it's too long, it elevates the Riddler to the same level as the Joker, too many images from Batman's collection of suspects, and finally, it's just part of a larger series, viewers would miss the context then without it.