Can't say I enjoyed this film that much. Too long, the ending is dumb, none of it made much sense tbh. Compared to Platoon or Full Metal Jacket, it's way down the list.
Watching the documentary about the making of it helps enormously.
There's so much to it, that it's very easy to miss loads - symbolism, political statement etc, also there's all the ad lib stuff - Sheen overdosing on acid and them continuing filming, Robert Duvall ad libbing during the " Charlie don't surf " scene and loads more. Plus all the trouble they had with Brando too.