On July 24 this year, the new film adaptation of Arthur Ransome’s children’s classic Swallows and Amazons (first published in 1930, and set in summer 1929) had its world premiere at the Theatre by the Lake in Keswick, one of the more frequently-visited towns in the Lake District National Park. The film, like the book on which it’s based, tells the story of the four Walker children – John, Susan, Titty (renamed Tatty in the film) and Roger – and their adventures on and around a Cumbrian lake. The film’s director, Philippa Lowthorpe, was drawn to the project because Ransome’s …