Director Paul Greengrass returns to guide the cast as they run furiously around the streets of London, Madrid, Tangiers and New York, and the genre material benefits greatly from his paranoid documentary style.
While the crunchy fights and unflagging pace ensure this delivers as genre spectacle, the muddy ethics also make for a pleasing contrast with standard-issue wham-bammery.
Unsuspecting punters may think, 'Well, I've seen the first two, so I might as well find out how the story ends' -- but, if so, they're going to be disappointed.
Bourne -- or whatever his name really is -- is such a resourceful and reckless agent of chaos, we thrill to him despite the fact that he's officially a non-entity.
