Pick up a DVD copy of this movie then send it to your enemy. A confusing dragged out plot including a weak attempt at romance. Flaccid military action lead by an old man trying to pass for 21. The writer(s) considers themselves to be wise in the way of war since they read Sun Tzu's The Art of War (or maybe just read a summary on Wikipedia).
An old man at a grocery store suddenly gets hauled into the plot from outer space it seems, becoming a murderer, arsonist, doctor, philosopher, friend and accomplice all somewhat randomly.
I don't know what this movie was supposed to be about. Suffice to say it didn't really deliver the message all that well.