Passport to Pimlico (1949)

Storyline :

Passport to Pimlico (1949) When an un-exploded WWII bomb is accidentally detonated in Pimlico, London, it reveals a treasure trove. They find documents proving that the region is, in fact, part of Burgundy, France and thus foreign territory. The British government attempts to regain control by setting up border controls and cutting off services to the area. The 'Burgundians' fight back.