George Clooney and Sydney Pollack in Michael ClaytonMICHAEL CLAYTON

There's a spirit of fatalism and dread that hangs over nearly every scene in Tony Gilroy's legal thriller Michael Clayton, and the miracle of the movie is that its grimness doesn't equal torpor; for a work drenched in both literal and figurative darkness, it's exquisitely, robustly entertaining. Like the films in the Bourne franchise (all of which Gilroy scripted), Michael Clayton is a smart, knotty diversion that keeps your senses, at all times, alert, and happily, the movie's ecologically minded plotline - involving an agricultural chemical company being sued for poisoning communities - doesn't have sanctimonious intent. The movie isn't designed to be Good for Us; it's just designed to be good. And it's very, very good.