The often breathtaking, final installment in the Bourne trilogy finds the titular assassin with no memory closing in on his past, finally answering his own questions about his real identity and how he came to be a seemingly unstoppable killing machine. Matt Damon returns for another intensely physical performance as Jason Bourne, the rogue operative at war with the CIA, which made him who and what he is and managed to kill his girlfriend in the series' second film, The Bourne Supremacy. Now looking for payback, Bourne goes in search for the renegade chief of CIA operations in Europe and North Africa, partnering for a time with a mysterious woman from his past (Julia Stiles) and constantly--constantly--on the run from assassins, intelligence foot soldiers, and cops. Directed by Paul Greengrass (United 93) with the director’s thrilling, trademark textures and shaky, documentary style, The Bourne Ultimatum is largely a succession of action scenes that reveal a lot about the story’s characters while they’re under duress. Joan Allen, Albert Finney, David Strathairn, Scott Glenn, and Paddy Considine comprise the film’s terrific supporting cast, and the well-traveled movie leads viewers through Turin, Madrid, Tangiers, Paris, London, and New York. Overall, this is a satisfying conclusion to Bourne’s exciting and protracted mystery. --Tom Keogh