V for Vendetta (movie)
It started Evey Hammond going out to see a co-worker named Gordon Deitrich.  It is past curfew and she will get in trouble if she gets caught.  As she walks, she is stopped by three police officers.  She is about to be harmed when V, a man who wears a Guy Fawkes mask, comes in and rescues her.  He then invites her to a concert.  They go up on the roof.  V waves around and the 1812 Overture begins playing.  Evey is then shocked to see the Old Bailey be destroyed as V laughs.