Could a mixtape save the world? In the new cosmic horror drama Starfish, the answer might just be yes. The new film from Yellow Veil Pictures and The Orchard stars Halloween standout Virginia Gardner as Aubrey, a young woman struggling with the death of her best friend when she wakes up in a world where she's seemingly the only survivor. With only one clue -- a cassette tape labeled "THIS MIXTAPE WILL SAVE THE WORLD" -- Aubrey has to make her way through the cosmic horrors of the apocalypse. Written and directed by A.T. White, Starfish will hit theaters in …