Written and directed by Tony Gilroy, who previously adapted the Bourne movies for the big screen, Clooney takes the title role as a lawyer who goes in to do the jobs that, bluntly, nobody else wants to know about. And before long, Clooney discovers a cover-up that proves to be a mighty challenge to uncover, and one the inevitably conflicts him as a result.

Aided by a superb supporting cast that includes the likes of Sydney Pollack, Tom Wilkinson and Tilda Swinton, Michael Clayton at its best is a tense and effective thriller, written and directed steadfastly well by Gilroy. It's not without a few problems, most notably a comparably weak conclusion and one or two underdeveloped characters. But it's still a worthwhile film, and very much worth seeking out to simply enjoy a terrific performance from a Hollywood leading man who absolutely refuses to shy away from edgier roles. Long may he continue to do so. --Jon Foster