Grave of the Fireflies, a masterpiece. It's on my favorites list because it is a work based on true events. Its best versions are the anime and the 2005 version, both of which managed to be more dramatic, better directed, and with a great cast. The 2005 version has the fewest noticeable flaws—just small, almost imperceptible mistakes—as well as convincing special effects. However, both versions share a glaring flaw: those flashing lanterns that look nothing like fireflies. Giant fireflies do not exist, let alone ones that maintain a constant glow; I find it bizarre. They manage to create other complex effects but can't produce a decent effect for an insect called a firefly—a simple effect that even amateurs could pull off. For those who don't know, Lampyris noctiluca is the scientific name for the firefly. They are coleopteran insects from the Elateridae, Phengodidae, or Lampyridae families, notorious for their phosphorescent light emissions. A firefly's bioluminescent organs are located on the underside of its abdominal segments. Luciferin is oxidized by oxygen, mediated by the enzyme luciferase, resulting in oxyluciferin, which loses energy, thus causing the insect to emit light. Contrary to what many think, fireflies are neither radioactive nor toxic—though, obviously, no one is going to ingest a firefly.