Man, I heard about this a while ago. My friend just showed me the trailer a few weeks ago. Looks AWESOME. I love comic book movies, but this is different. This looks better than a lot of the ones that have come out. Does that mean it will be? No, but I think it has the potential to be, and I hope it is. Plus... Hugo Weaving is V. How awesome is that? I really like Hugo Weaving, even though I know that's a widely unpopular opinion (is in my circle of friends, anyway).
If you haven't seen the trailer, I suggest you take a look. Even if you've never read the GN, and even if you HATE comic book movies, this could appeal to you.