The unmade sequel to Batman & Robin almost introduced Harley Quinn to the world of DC live-action movies years before she actually debuted in this capacity. Batman & Robin has a complicated place in the annals of Batman movie history, being one of the most easily recognizable – and most consistently disliked – releases in the Dark Knight’s entire film catalog. However, this only serves to make the real life story of the installment and its effect on DC’s movie landscape all the more interesting.
