Novelist Andrew Martin presents a documentary examining how the train and the railways came to shape the work of writers and film-makers.
At the beginning of the railway age, locomotives were seen as frightening and unnatural - Wordsworth decried the destruction of the countryside, while Dickens wrote about locomotives as murderous brutes, bent on the destruction of mere humans.
Martin traces how trains gradually began to be accepted - Holmes and Watson were frequent passengers - until by the time of The Railway Children they were something to be loved, a symbol of innocence and Englishness. He shows how trains made for unforgettable cinema in The 39 Steps and Brief Encounter, and how when the railways fell out of favour after the 1950s, their plight was highlighted in the films of John Betjeman.
Finally, Martin asks whether, in the 21st century, Britain's railways can still stir and inspire artists.
I've also discovered an interview with Andrew Martin on his publisher, Faber & Faber's site.