Marrowbone | Fandango. Marrowbone (Spanish: El secreto de Marrowbone, lit. 'The Secret of Marrowbone') is a 2017 English-language Spanish drama horror-thriller film written and directed by Sergio G. Sánchez. Marrowbone | Film Review | Slant Magazine, Available same day as theatrical release. Four siblings must keep their mother's death a secret in order to remain together, but are plagued by a sinister. Amazon: Marrowbone: George MacKay, Anya Taylor-Joy. Marrowbone | Magnet Releasing. Screenwriter Sergio G. Sanchez ('The Orphanage,' 'The Impossible') makes his feature directing debut with 'Marrowbone,' an excellent period-piece ghost story, An incessant deluge of subplots drowns what could have been a sparse and beautiful ghost story..