The Tube Train is the one used in The Darkest Hour - it was shipped to London from Mangapps Farm for filming. Pictured here are David and Glenys Hopkins, who donated the money to bring her home, John Jolly, who is hosting her at Mangapps, and, looking at the blueprints, Will Dallimore, grandson of Vanguard's designer, talking to Janet Brasted, granddaughter of Albert Grimwade, who skippered Vanguard during Operation Dynamo.