If a real Crows Zero 3 ever gets greenlit, you can be sure the news will hit Netflix, Crunchyroll, and every major entertainment outlet—not a shady download site. Until then, keep your guard up, support the official releases, and protect your device from malware disguised as the movie you’ve been waiting for.
If you choose to download from third-party movie sites (often labeled as "Terbaru" or "Sub Indo"), ensure you have a strong Antivirus and an AdBlocker enabled.