So what do you have to "get over" to like this movie? The fact that standing sets and one American are used to be Vietnam. Those are small faults in a tightly put together potential exploitation film that instead manages to actually be dramatic and yes it's nasty in a war that's realistic to war in general and Vietnam in particular.
Due to a fast pace and tight dialogue this one won me over very quickly. It's well acted and there are things you won't see coming. The faith elements--both of the nuns and the doctors--are changed and broken realistically.
Unlike other Vietnam films--those made while the war was still being fought--this one presents the war in a way that time has supported, not torn down. There is no flag waving here. Also given good context and excitement to it all is a good musical score by Paul Dunlap.
James Clavell--as he proved with his novel turned movie KING RAT and with his later last film as director, THE LAST VALLEY, doesn't shy away from rape and death and nastiness in war but manages to make it about characters and drama not cheap exploitation. Which isn't to say that fans of just that wouldn't find this enjoyable and maybe even a little bit educational as well.
It's a good movie with limited production values--but makes the most of itself.