David A. Ross; Robert Rodriguez; William Cahan

Whitney Museum Director David A. Ross explains the significance and purpose of the Whitney Biennial. Director Robert Rodriguez, whose first film, "El Mariachi," was shot for $7,000, recounts how he made it in Hollywood and describes his new feature film with Columbia Pictures. Oncologist Dr. William Cahan, who devoted his life to the fight against cancer, introduces his memoir, "No Stranger to Tears: A Surgeon's Story."