Painted Boats appreciates the gentle rhythm of traditional canal life, whereas Ted's ambition is to get off the canals and into mainstream life at the earliest opportunity. World War II intrudes when Ted is called up for military service, leaving the future for the pair uncertain. Location filming took place on the 20-mile stretch of the Grand Union Canal between Stoke Bruerne and Braunston in Northamptonshire, including the Blisworth Tunnel – at 1.75 miles (2.82 km) in length, the third-longest canal tunnel in Britain. Insert shots feature the industrial landscape of Stoke-on-Trent in Staffordshire, the famous Anderton Boat Lift in Cheshire and
Blisworth and Birmingham Railway, under the surveying and construction control of Robert Stephenson, bypassed Northampton and opened a station in Blisworth in 1839. In 1842, after much discussion, Lord Grafton agreed to fund a new station as long as it was a "first class" station - i.e., all trains stopped at it. Ford Lane became Station Road, the location of Blisworth station. In 1845 a branch line on to Peterborough was completed via Northampton, and in 1866 a single-track line was built to Banbury. Blisworth station closed in January 1960 and both branch lines have also long since gone. The main