Like Koyaanisqatsi with an Interrail pass, this often-fascinating documentary – constructed entirely of archival footage, with no voiceover – surveys the sweeping 20th-century changes ushered in by steam trains: a great acceleration of modern society that transformed logistics and leisure, from travel for the masses to war mobilisation, introducing new consumer opportunities and abrupt psychocultural disruptions. As per the 1920s flappers gazing brightly out of the window early on, director Maciej Drygas acknowledges the liberation and optimism offered by the locomotive. But prefaced by a Kafka quote – “There is plenty of hope, an infinite amount of hope … But...