The saddest, most heart-breaking movie in Studio Ghiblis profoundly emotional repertoire, Grave of the Fireflies, is all set to land on Netflix next month. Meaning that audiences everywhere will soon be able to share in the trauma. And while that may be a daunting prospect, Grave of the Fireflies is worth it, with the animation by far one of the most effective war films ever made, that is sure to leave you forever changed.