Answer: True.
Step-by-step explanation:
V for vendetta is set in the United Kingdom that is subjugated by a neo-fascist Christian totalitarian regime. And the story focuses on V, an anarchist and freedom fighter that tries to start a revolution.
The word "totalitarian" does not describe all the faces of the government in V for vendetta, but at least it describes the most important parts of it, so I would say that this is true.