The documentary covers the life and career of Warren Buffett, who is widely regarded as one of the most successful and influential investors of the 20th century. Buffett is interviewed extensively on his upbringing, his early facility with mathematics and interest in investing, and his time as a young adult studying under
Benjamin Graham to learn the principles of
value investing (which are outlined with a series of short animated segments). Buffett's friends, family and colleagues are featured in interviews, including his wife
Susan Buffett and his longtime business partner
Charlie Munger. ==Critical reception==