I really like The Yes Men and their movies and am looking forward to their third big picture.
What they do? Wikipedia explains:
The Yes Men are a culture jamming activist duo (…). Through actions of tactical media, the Yes Men primarily aim to raise awareness about what they consider problematic social issues. (…T)hey impersonate entities that they dislike, a practice that they call „identity correction“. The Yes Men operate under the mission statement that lies can expose truth. They create and maintain fake websites similar to ones they intend to spoof, which have led to numerous interview, conference, and TV talk show invitations. They espouse the belief that corporations and governmental organizations often act in dehumanizing ways toward the public.“
They have spoken about their latest infiltration of the Homeland Security Conference during the re:publica event in Berlin and if you want to get to know what they are and how they work, it’s a good idea to take a look at their keynote!