If you’d like me to based on that title, here’s one possibility: Title: The Last Echo

Chased across the ruins of a cinema city, Meera must decode the film’s dual audio before the warlord weaponizes it — or destroys the last proof that different voices can tell the same story.

In a post-apocalyptic world where language has fractured into isolated dialects, a young sound archivist discovers a forbidden dual-audio recording that could either unite the last surviving tribes or doom them forever.