A German film director and screenwriter, he is known for his distinctive storytelling and visual style. He gained international recognition with "Christiane F.," a gritty portrayal of teenage drug addiction. His work often explores intense themes and complex characters, blending commercial appeal with artistic depth. Notable projects include "Last Exit to Brooklyn" and the Emmy-nominated TV movie "The Baader Meinhof Complex." His career spans over four decades, marking significant contributions to both film and television.