In the movie Apocalypse Now towards the beginning where the protagonist is in his Vietnamese hotel/dorm there is a mental breakdown sequence. During this montage he is seen to be ingesting alcohol, muttering to himself and intermittently performing some kind of martial arts kata.
For those who haven't seen it, there is a short clip here.
It seems to be performed quite slowly and as far as distinguishing characteristics go, the hand/arm moves appear to be very restricted, virtually hugging the body and/or his head.
What is this style and what is the name of that specific form?