I've seen it. She actually does an acting performance in this movie. In fact, 10 minutes of her in V is more acting than she had ever done in almost seven hours of Star Wars.

And I really liked the movie a lot. It does a good job of adapting the Alan Moore graphic novel. Of course, some corners had to be cut, but the themes and the message about public complacency and fascism is still there. I managed to catch it with a preview audience during Wondercon. Even got a few Guy Falkes masks out of it. I'll be seeing it again on opening night on an IMAX screen.
And if you go there expecting an action comic book movie just because it's based on a comic book you'll be disappointed. It is a thoughtful science fiction film that has a lot to say about what direction the world could head toward if we let it.

I think it could symbolyze our struggle to preserve the O-OT when the powers that be do their best to re-write history and say they don't exist. Of course I wouldn't go so far as to blow up Skywalker Ranch, like V wanting to blow up Parlaiment.