This documentary was excellent, though it could have been better, it was the most organized and interesting document that has been created on behalf of the refugee system in North Korea (Children of the Secret State was even better). Jim Butterworth finally brought the topic of North Korean refugees to America and tried to make the invisible people visible. i can only hope that this film will help spread the word about the north Korean refugees who are ignored by the world, and by all states. even the American government and the UN ignores them. another excellent document was Children of the Secret State, which actually spoke with several refugees, showed the plight of the refugees in China, and showed even more rare North Korean footage. Seoul train could have given a more detailed account on the statistics and such, and could have talked about the starvation issue in North Korea and showed more of the suffering of those refugees in China.