Also,
"Tae Guk Gi/Brotherhood of War" is a movie worth watching.
It's about two brothers that get drafted into the military during the Korean War. It's fast paced and filled with a lot of action, but still manages to maintain a good storyline.
You may be able to watch the full movie on Youtube if you look for it soon. As for other sources, I'm not sure; I couldn't find any.
Here's a trailer
[WARNING: This clip contains mild images of corpses and combat wounds]: