Freely adapted from Robert Ludlum's 1980 bestseller, The Bourne Identity starts fast and never slows down. The twisting plot revs up in Zurich, where amnesiac CIA assassin Jason Bourne (Matt Damon), with no memory of his name, profession, or recent activities, recruits a penniless German traveler (Run Lola Run's Franka Potente) to assist in solving the puzzle of his missing identity.