IMDB Entry: here
Now this one is a treat I have seen several times. The story itself is somewhat simplistic (although I believe that owes something to the studios wanting to exorcise the anarchist themes of the original comic book) being the old story of an attempt to overthrow a repressive regime. But as we learn more about the history of this regime, we begin to see parallels with what is happening in our current society.
Now being thwacked around the head with a serious political message is not usually considered to be an entertaining experience, which is why films like V need to gloss up the message in a story. And the story whilst simplistic does have enough twists to keep one interested.
The main message is that we need to be wary of sacrificing our civil liberties in the name of security.