Anderson Cooper’s Personal Project Honors His Legendary Mother

Who better to give the world an inside look at the life and times of the legendary Gloria Vanderbilt than her own son?

Celebrated broadcast journalist and mama's boy Anderson Cooper is set to produce an in-depth documentary on his designer/heiress mother, aptly titled Nothing Left Unsaid: Gloria Vanderbilt & Anderson Cooper, which will air on HBO in April.

According to Adweek,Cooper has been collecting pictures and other little things from his mother's life since the late 1980s, and it was a "surreal" experience getting to interview and produce a film about her. Vanderbilt is 91.

"You may know her name, but you really don't know who she is, or what her story is," he told writers covering the Television Critics Association winter tour in Los Angeles. "I'm a different person than I was when I started this film, and I realize how much like my mother I am."

"She's had a more interesting life than me!" Cooper continued. "She does have this incredibly optimistic way of looking at things, and she really does believe that the next great love is just around the corner."

Nothing Left Unsaid: Gloria Vanderbilt & Anderson Cooper premieres at the 2016 Sundance Film Festival January 23.