Watch Jam Docu GangJeong for Free: How to Stream the Movie Online at 123Movies. . Gangjeong Village, located at the southernmost part of Jeju Island's Seogwipo City, is in the true sense a 'breathtaking land of water.' In this film, eight directors independently yet collaboratively orchestrate a clever and humorous "mission" at this place where the groundwork for building a naval military base is in progress.