Although long, it is a good film. The battle scenes are graphic: both bloody and muddy. The folk music is nice, too. Most of the film takes place outdoors, which made filming difficult.
Afterward, the other DrC asked me why I hadn't wanted to see it for several years. I replied, "because I believed it to be sad." She said "So...?" and I replied "I don't like sad films." It is almost a truism that films about the U.S. Civil War will be sad.
Verdict: Yes, it is a sad film, but very well done and worth your time.