well i'd say if i were to rank those movies , the order would go like this: Platoon, Hamburger Hill, Apocalypse Now. it's an interesting look at the US's insistence (and almost constant failure) to take over hills occupied by the VC. they'd get halfway up the hill, and then get called back. the VC would regroup and the next day they had to retake the same part of the hill they just took the day before. hill 937, which this movie was about, became known as Hamburger Hill for the way it would chew men up and spit them back out. it kinda shows the folly of the whole war in the first place.