I haven't seen film or read the book yet, but I thought this was interesting:

This website is intended to introduce fans of the film/graphic novel V For Vendetta to the history and philosophy of Anarchy. V For Vendetta was originally a comic produced in the mid 1980s by Alan Moore and David Lloyd about a man who destroys the corrupt state he lives in, promoting Anarchy to the masses all the while. This core message of Anarchy has been severely twisted in the film verison.

Hence A For Anarchy.