I clicked other because none of my favorite war movies are up there my top three would have to be
3. Taegukgi, a great movie about two brother conscripted into the ROK army during the beginning of the Korean war and their fight for survival
http://en.wikipedia.org/wiki/Taegukgi_(film)
2. Assembly, one of the best movies ever made about war and the toll it takes on soldiers. Ii follows the life of a captain in the PLA fighting in the Chinese civil war in 1948 and then into Korea and how it effects him later in life. One of my all time favorites
http://en.wikipedia.org/wiki/Assembly_(film)
1. Gettysburg, One of the greatest war movies ever made. The level of attention to detail is great and the movies characters are so relatable and the scope of the movie is so grand that it is very hard not to become engrossed in it all while watching. I have watched this movie a dozen times and I still get chills at certain points (like when the Union line volley fires in the the Rebs during Pickets charge).
Honorable mention:
The Warlords, another awesome Chinese war flick set in the 1860’s during the Taiping rebellion. The costumes, the battles, the relationship between the three main characters and the interesting turn it takes when their personalities change make it a really good movie. This movie would make my top 5 list every time.
http://en.wikipedia.org/wiki/The_Warlords