Well, in all honesty, this film has many plot holes,inconsistencies and goofs. However, I missed all of the above flaws after watching it the first time. It took me two or three more viewings to realize that Agent Orange actually doesn't make sense.
But that isn't the point is it? The point is I actually bothered viewing it a few more times. In fact, I watched it many many times. So what caught my attention? Mostly it's the visuals. Tony Scott is famous for creating visually interesting and unique films, and this film is no different. The fast cuts and fades between shots, and the semi-greenish setting gives the film a very fantasical aura despite it being set in the real world.
It's a 5 minute love story, and a technical achievement. Perhaps it's an experiment of sorts by Tony Scott, or perhaps it's a disaster from a storyline perspective. But really, if we think about it, there's no such thing as a movie that makes perfect sense.
So enjoy the ride while you can.
* 8/10 p/s this film actually inspired me to make a short film. you can view it at http://www.youtube.com/?v=9sy3L2i3F9c.