Building a "movie information site" using legal APIs (like TMDb) is fine. Copying the ad injection or URL obfuscation techniques of Filmyzilla crosses the ethical line.
Piracy deprives filmmakers and creators of their livelihood. Using "clone" scripts perpetuates a cycle of theft within the entertainment industry. Legitimate Alternatives source code filmyzilla
An admin panel to upload, edit, and organize movies into categories (e.g., Bollywood, Hollywood, South Indian Dubbed). Building a "movie information site" using legal APIs