Joking aside for a moment, I had the great privilege of meeting someone, stayed at his house over a Christmas in fact, who was a "guest" at the Great Escape camp for much of the war. He was only a few numbers down the list from those who escaped, and were subsequently shot, so in a sense he was lucky not to have escaped. Although there were no Americans there I gather most of the things in the film were true, eg the mud down the trousers thing. He still had the clogs he'd worn after his boots hard worn out. He's no longer with us now, but it was a fine thing to have met him, and sat listening to him and his friend telling stories - mainly about Australian Socialist politics, where they'd also been comrades, rather than the War it must be said.