Very funny film
I liked this film and the ending was a surprise, but I thought it was some kind of anti-war message until I read it was a studio decision (it still could be a message thought up by some smart studio exec).
Since it had very little dialog, a lot of which was Japanese, I ran the film at 2x speed. It made the characters look very amusing throughout most of the film, as they try to build things to survive and Marvin continually tries to steal things and cause the other guy problems.
The rip sequence when they are heading out to sea reminded me a lot of Castaway all of a sudden.
Now I just need to see Enemy Mine again, which I have not seen for about fifteen years and is like a sci-fi version of this with a lot more added.