London is a very scenic city, so it makes a great location for action movies. There are many to choose from. Some are about cops and criminals, some are period pieces, and some have elements of science fiction mixed in. More than a few dedicate themselves to showing the city's famed landmarks. Action films based in London offer just about anything fans of the genre could want, all in a very atmospheric setting.
Now is your chance to weigh in on the subject. Vote up the best action movies set in London, and keep checking back to see how others are voting. If your favorite isn't here, just add it so that others can weigh in.