In 1924 pioneering filmmaker Claude Friese-Greene set out on an 840-mile road trip across Britain. He recorded his journey on film, using an experimental colour process: the result was a travelog called The Open Road. Restored by the British Film Institute, the BFI National Archive holds one of the largest film and television collections in the world. Dating from the earliest days of film to the 21st century, it contains nearly a million titles. The Open Road is important both as a landmark in the development of colour on film but also as a fascinating social record of interwar Britain.