A cow usually lives for about 15 years on average. Here’s a moving tale about a cow that lived for nearly 40 years. The Korean feature-length documentary film “Old Partner” (2008) received a Cinematic Vision Award at the 2009 SILVERDOCS Documentary Festival held in Washington, DC from June 15 to 22. “Old Partner” illustrates the tail-end of a life-long friendship between the 79-year-old farmer Choi and his almost 40-year-old cow in a remote South Korean village. SILVEROCS is one of the most renowned documentary festivals in the world, and is co-sponsored by AFI and the Discovery …