The Small Back Room review – boundary-breaking wartime

Reuniting the stars of Black Narcissus, this movie about a back-room boffin attached to a bomb disposal unit finds the film-makers pushing gloriously against genre conventions

Kathleen Byron and David Farrar were unforgettable presences in the 1947 Powell and Pressburger classic Black Narcissus, playing a hysterical nun and the taciturn colonial agent with whom she is peevishly infatuated. The film-makers reunited these remarkable performers two years later for this intimate, intense wartime drama thriller; brilliant on the emotional misery, low-level dread and petty office politics of wartime government. It takes place mostly in London’s noirish darkness and rain, except for the sensational final sequence in the bright sunlight of Chesil beach in Dorset.

Adapted from an autobiographical novel by military scientist Nigel Balchin, The Small Back Room is a work that shows the film-makers pushing – brilliantly – at the conventions and constraints of a regular wartime period drama. Any number of British directors might have wanted to take on this story. But the Powell and Pressburger authorial flourishes are irresistible.