V For Vendetta (2005)

Posing an alternate reality that could have occurred if Nazi Germany had conquered Britain in World War II and still held the country in totalitarian control in 2020 (while America had lost most of its population to civil war and plague) a man who wears a mask of Guy Fawkes (the "freedom fighter" who attempted to blow up the British Parliament in 1605 and inspired bonfire celebrations every November 5th since) is the Phantom of the Opera-like villain who strikes revenge with ease, throwing the big brother state into disarray through his own terrorist actions.