If you watch Roseanne reruns you get to see George Clooney back in the days before he emerged as one of the best actors in the business. If you want to see him at the top of his form go see Michael Clayton. Clooney plays a lawyer whose main task is to clean up other people's messes - he says at one point he says he's a janitor, at another point he's a bagman. When another lawyer loses it in a deposition Clayton is sent in to clean up the mess. But things are not what they seem and Clayton gets drawn into trying to sort out what is really going on.
There are some really tense moments but this isn't a car chase kind of movie - instead the tension comes from the emotional turmoil of Clayton's character as he's torn between his own demons and claims of friendship with the other lawyer (who is wonderfully played by Tom Wilkinson). Great movie!