Jessica Chastain on Her 'Zero Dark Thirty' Character

Golden Globe nominee Jessica Chastain shares how she researched her role of a CIA agent in Kathryn Bigelow's Zero Dark Thirty. "I had three months before we started shooting to basically go to school, I worked with Mark Boal who was our screenwriter, he started his career as an investigative journalist, I asked any question about the CIA, I asked about Maya, he gave me a lot of information about the character I was playing" added Jessica.