Filmmaker Larry Clark was once forced to "kidnap" Brad Renfro to make sure the late actor was clean of drugs before they started shooting a movie together. Clark visited Renfro, who was found dead from a heroin overdose last month (Jan08), at his Knoxville, Tennessee home in advance of filming Bully in 2000 - and was shocked by the then-17-year-old's bloated, drug-addled appearance. The director realised that if he didn't force Renfro to clean up, his movie would never get made because no insurance company would cover an actor in his condition. Clark recalls, "I said, 'What the f**k are you doing?' He'd been banging coke. He has tracks running down both arms. He looks horrible. I just saw the whole movie going down the drain... "I've been around a lot of addicts and alcoholics, and I remember thinking at the time, this is one of the worst cases I've ever seen. "(So) I kidnapped him. He kicked (drugs) in the car. He had a seizure. There's nothing you can do. It doesn't last that long."