Braulio Fierros. Braulio Fierros was >> in Grave Error as 'Sound Designer, Director, Editor, Music, Screenplay, Director of Photography'Amhed Hilerio. Amhed Hilerio was >> in Grave Error as 'Sound Designer, Director, Producer, Screenplay, Editor, Director of Photography'Natalia Ordaz. Natalia Ordaz was >> in Grave Error as 'First Assistant Director'Braulio Flores. Braulio Flores was >> in Grave Error as 'Sound Assistant, Music'Fatima Quintanilla. Fatima Quintanilla was >> in Grave Error as 'Makeup & Hair, Art Department Assistant'Mauricio Blanco. Mauricio Blanco was >> in Grave Error as 'Camera Operator'