Pork Chop Hill, a movie starring Gregory Peck released in 1959 about a real battle in Korea on the future DMZ in early 1953 before the armistice. Filmed outdoors in the Los Angeles area and scripted by S. L. A. Marshall who was there in Korea, the film tells the story of how the US and China fought over a worthless piece of real estate that had become a bargaining chip between the two sides. Somewhat primitive by current war movie standards, the film showcases many future stars early in their film careers. For a taste of what war was like in Korea, I recommend this film. However, it does not show the other enemies the US/UN faced, Korean geography and Korean winters.