It's a political film, and I thought a good insight as to how terrorists are made by governments. I have a few little nitpicks, but on the whole, I loved it.
The nitpicks, you ask? I didn't like the ending. I mean, the mass of people in V costumes who came out to watch parliament being blown up was pretty damn cool visually, but I was yearning to see Evey put on V's mask and let it be known that his ideal lives on to the masses. I was disappointed when it ended with her standing on the balcony with Finch to watch the explosion/fireworks. And by the same token, I wouldn't have minded if she'd stayed with V after her liberation instead of deciding to leave. In the graphic novel, her staying with V meant that she trained, and became his physical, if not complete equal.
The two other things I missed were probably cut due to time constraints, and those were V's 'conversation' with Lady Justice and the 'Vicious Cabaret' musical number. The last one would've been so much fun. Can I hold out hope for a deleted scene?
I can't fault anyone in the cast. Hugo Weaving was so damn cool. There was much joy in my fangirl heart for his first appearance. V blew up Parliament first in the novel rather than the Old Bailey as he did in the film, but it was still so great to watch, seeing him 'conduct' the music. And while I'm on that subject, this film should get an award for best use of the 1812 overture. So much love. Natalie Portman has easily become my favourite actress. Her performance was gutsy and rivetting. As for the other major players, they all filled their parts well. Part of the fun was picking out British actors like Tim Piggot-Smith and Ben Miles in supporting roles. Stephen Fry was hugely enjoyable to watch too, and I couldn't help but wonder if he'd actually written that tv spoof himself. The nod to Benny Hill was brilliant.
The whole playing up of the romantic element between V and Evey wasn't too bad in my estimation. I thought it was a little awkward, but in the hands of a good writer it could be an interesting pairing. Just as long as they avoid all Phantom of the Opera references, because that's already become a cliche in the fandom. *grumble*
So all in all, I recommend it. I also recommend the graphic novel if you can find it. As it is with most book to film adaptations, the novel offers more depth to the characters and goings on in England as a police state than you see in the film.
Oh! And do go and read cleolinda's brilliant parody of it at m15m.