From the movie "The Great Escape": "Ex-POWs asked filmmakers to exclude details about the help they received from their home countries, such as maps, papers, an

From the movie "The Great Escape": "Ex-POWs asked filmmakers to exclude details about the help they received from their home countries, such as maps, papers, and tools hidden in gift packages, lest it jeopardize future POW escapes. The filmmakers complied." src: http://en.wikipedia.org/wiki/The_Great_Escape_%28film%29#Adaptation http://en.wikipedia.org/wiki/The_Great_Escape_%28film%29#Ada...