I have nothing but contempt for V the movie...out of respect for Moore's feelings, and my own distaste for the Wachowski brothers, I abstained from it in theatres. If a friend picks up the DVD, I'll watch it for a laugh, but I'll never pay money for it.
V the comic had a much stronger impact on me than Watchmen did. I had a very odd experience while reading it. I was working nights in an office building (long story) near a pier/commercial square area. All around the central building (which houses a Barnes and Noble), there were international flags flying from a series of poles. I never took much note of them, but I knew they were there. Well, I took to reading V for Vendetta during my breaks at work (my shift ran from 4:30pm - 1:30am), and I finally managed to finish it one night. Well, as I exited my office building, in the dead silence that is most office/commercial areas at 1:30am, I happened to look up to the sky...to see that every last international flag had been replaced by an American one.
And just for a moment, I felt a chill.