He appeared as a disgraced Army general sent to prison in the prison drama "The Last Castle" (2001), directed by Rod Lurie. In the same year, Redford reteamed with Brad Pitt for "Spy Game", another success for the pair but with Redford switching this time from director to actor. During that time, he planned to direct and star in a sequel of "The Candidate" but the project never happened. Redford, a leading environmental activist, narrated the IMAX documentary "Sacred Planet" (2004), a sweeping journey across the globe to some of its most exotic and endangered places. In "The Clearing" (2004), a thriller co-starring Helen Mirren, Redford was a successful businessman whose kidnapping unearths the secrets and inadequacies that led to his achieving the American Dream.