Ever notice how some of the best classic movies hide their own little secrets, like a puzzle for the audience? I wonder if those hidden cues could be turned into a form of encryption—like a film-based cryptographic system. What do you think?

You're right, it’s a bit of a silver bullet that turns into a silver bullet again if you look at it in detail. A watermark in the frame or a hidden metadata tag feels more like a lock on a safe than a secret message in a cinema‑script. The film is a living, breathing thing—every frame can be cut, compressed, or re‑encoded. The safer route is to hide it in something that survives those changes, like a subtle but unchanging pattern in the metadata or a tiny, reversible watermark in the color space. That way the story stays pure for the audience while the secret stays tucked away where only the right software can see it.

Sounds like a good plan—just remember even the most careful tweaks can slip through when the compression guy decides to push the bit rate. Always keep a backup key, and maybe a spare film reel for good measure.