“The Deer Hunter” - The entire movie is a metaphor for the stupidity that was Vietnam.
“Apocalypse Now” - Nothing in it that actually happened in Vietnam, but an excellent movie for Vietnam Vets who want to be reminded of their individual stories.
“Platoon” - The night fire fight scene depicts the chaos and confusion as close to reality as anything I can imagine. The killing of the old man is a metaphor for My Lai.
“Forrest Gump” - The ambush scene is on par with the night fire fight scene in “Platoon.”
“Full Metal Jacket” - What happened in the first half of the movie in Basic Training is believable. When the story jumps to Vietnam, you can learn more by walking out of the theater.
“Go Tell the Spartans” - Takes place in 64 and the message to me was, we should have seen it coming. Good simple movie.
You left out ‘Boys of Company C’. Pretty good one.