Greg Hemphill takes a sideways look at some remarkable documentary films. Between 1938 and 1982 over a hundred and fifty films were made to sell Scotland to the world and tell Scots themselves about their own country. This weeks films celebrate the greatest artists and writers of Scotland. Painter Joan Eardley is remembered by some of her child models from the Samson family. Bill Forsyth remembers his first paid job as a director, and shepherd Donald MacLean tells us about being filmed in 1963 for a beautiful film about Loch Lomond in the winter.