New movie uncovers the world of the CIA

Updated 5:40 p.m. ET

Producer and director Carl Colby always wanted to do a movie about his father, former CIA Director William Colby, but whenever the idea came about William never got onboard.

"When he would come to very personal questions, or more sensitive then whatever the flavor of the week was, he would just sort of put up a shield and say well that's your department friend I don't go into those treacherous emotional waters," Colby told CBS News Washington Bureau Chief Chris Isham. (watch the interview above at left)

Now, Carl got his chance. In his documentary film "The Man Nobody Knew: In Search of My Father CIA Spymaster William Colby," Carl Colby uncovered his father's undisclosed private life.

His father was involved with the coup against President Diem in Saigon, ran the controversial Phoenix Program in Vietnam, helped sway the elections against the Communists in Italy, and helped take on some of the White House's toughest assignments. He even went in front of Congress and unleashed some of the agency's darkest, most tightly held secrets. He was the director of the agency from 1973 to 1976.

"He was a soldier, he believed in authority and in America," Colby said. "Even though he had one of the bleakest, harshest views of the world that I have ever seen, he had this boyish enthusiasm for life and for America."

The film has already been shown in select cities. To find a showing near you, go to www.themannobodyknew.com.