I had the opportunity to talk with Martin Sheen a few years ago and we discussed the movie and his participation in its production in the Philippines and how tough it was getting that script on film.
If I recall correctly, there is a scene in which his character is very sick and close to dying which didn't require much of an acting effort on his part due to the fact that it was exactly how he felt during the entire shoot.
It was an interesting conversation about a great movie and an exceptional movie-maker.
i
