Note on Region Locking: Be aware that Blu-ray discs are often "region-locked." The 2025 GKIDS release from Shout Factory is specifically coded as "REGION-A LOCKED," meaning it may not play on standard Blu-ray players from Region B (Europe, Africa, Middle East) or Region C (Asia, Russia) without a region-free player.
However, I can offer legal alternatives:
You can find "Grave of the Fireflies" on various streaming platforms, such as:
Look for these indicators: