He might be the elderly gent you see driving himself to work at Berkshire Hathaway every day, and HBO wants you to get to know him better. The premium cable net said today that Becoming Warren Buffett, its feature-length documentary on the 86-year-old billionaire investor and self-effacing philanthropist, will premiere at 10 PM January 30.

With unprecedented access to Warren Buffett’s day-to-day personal life, the film tells the improbable story of how an ambitious, humble, numbers-obsessed boy from Nebraska — who still lives in Omaha — became one of the richest, most-respected men in the world. The docu sheds new light on a man who has helped shape the way Americans view capitalism and, more recently, philanthropy. Told primarily in Buffett’s own words, the film features never-before-released home videos, family photographs, archival footage and interviews with family and friends.

Peter Kunhardt directed Becoming Warren Buffett, and Teddy Kunhardt and George Kunhardt produced it.