We're back now at the behind the scenes look at oprah winfrey's leadership academy in south africa. She calls it her most important accomplishment. Last night on own, oprah opened up about the girls... See More
We're back now at the behind the scenes look at oprah winfrey's leadership academy in south africa. She calls it her most important accomplishment. Last night on own, oprah opened up about the girls that just became the first graduates. You will not only exceed, you will excel. Reporter: Many this two-hour documentary. The class of 2011. Reporter: Own viewers get a look inside the oprah winfrey leadership academy for girls. Following the girls from admission interviews. You really want to come to this school? I really really want to. A dozen reallies. Reporter: To graduation day. I was thinking about this day with them walking in triumph across this stage in their white dresses. Reporter: Juju and oprah talked about the challenges, the victory. And how oprah stays connected with the girls. They call you onmom open remarks that's for real. Oh, yes. Reporter: She selected all the girls herself. Adds a mother, just a person who has been a part of your lives for the past four or five years, I have never been more proud. Reporter: But there has been controversy, too. In 2007, oprah fired a female dorm adviser who was charged with sexually molesting girls and then flew to south africa to apologi apologize. You learn from mistakes. You learn by doing. If I had to do it over again, i probably wouldn't do it this way. Reporter: Some critics question why she's investing in south africa. I don't look at it as an investment in south africa. It's a gift to the world, whatever the future of the girls is decided, those girls will be sitting at the table.
This transcript has been automatically generated and may not be 100% accurate.