River as Descent Structure
Structuring the film as a river journey, where each stop takes the characters deeper into danger and into moral or mental breakdown. The trip on the map matches the one inside them.
How this film uses it
As Willard travels upriver, the trappings of civilization fall away bit by bit. Each stop takes him further from the sane world: the Playboy helicopter, the Do Lung Bridge, the French plantation. By the time he reaches Kurtz's compound, he is fully ready to understand what he finds there.
Where to see it
The Do Lung Bridge sequence. It is the last outpost of military command, and nobody is in charge or knows why they are defending it.


















