5. The Bourne Ultimatum (2007)
Everyone's favourite rogue agent with highly-selective amnesia gets a spot for the end of the series (at least with Damon in the lead...). Bourne movies tend to raise the stakes with every outing: the first one, Bourne Identity, established his background as the assassine who turns on the CIA after a turn of conscience; Supremacy has him act on that sudden developed conscience by asking for forgiveness of his past actions, and finally in the third installment he wants to take down the entire organization that turned him into a weapon. Not to demean the first two films in the trilogy, but the stakes in those were just not well-established, and Bourne is usually aimlessly wandering around occasionally being targeted by his former employer. But in Ultimatum, he finally has developed a goal: stop Treadstone and its agents, and that purpose drives the film on to greater success. It is a thrilling ride, offering some resolution to the character, and cementing him as one of the finest modern movie spies of this generation - in many ways redefining the landscape of the genre and paving the way for the grittier, darker Bond we have now.