The future director Muriel Box’s fascination with the medium of film first came upon her during her childhood in the 1910s, when a family friend who owned a cinema would permit her to sit in the wings and watch the show from behind the screen (posing a challenge when trying to read silent film intertitles), and sometimes even allow her to rewind the film spools, ‘and, if the film broke’, she recalled in her autobiography, ‘let me stick it together again which gave me a happy feeling of…