The Bourne Supremacy is a 2004 film based on the Robert Ludlum novel of the same name. It is also a sequel to the 2002 film The Bourne Identity. The Bourne Supremacy continues the story of Jason Bourne, an amnesiac and former CIA assassin played by Matt Damon, and his attempt to learn more of his shadowy past as he is once more enveloped in a conspiracy surrounding the CIA and Operation Treadstone. The film also stars Franka Potente as Marie Helena Kreutz, Brian Cox as Ward Abbott, Joan Allen as Pamela Landy and Julia Stiles as Nicolette Parsons.