Context of Sound of metal, Stage 6 Films presents ; a Caviar and Flat 7 production ; in association with Ward Four ; directed by Darius Marder ; screenplay by Darius Marder & Abraham Marder ; story by Darius Marder & Derek Cianfrance ; produced by Bert Hamelinck, Sacha Ben Harroche ; producers, Kathy Benz, Bill Benz