Aeon Flux (2005)

Plot:

400 years in the future, when disease has wiped out the majority of the earth's population except for one walled, protected city-state: Bregna, ruled by a congress of scientists. The story centers on Aeon Flux, the top operative in the underground Monican rebellion, led by the Handler. When Aeon is sent on a mission to kill a government leader, she uncovers a world of secrets.