April 26 will mark the 20th anniversary of the disaster at the Chernobyl nuclear power plant in the Ukraine.

In 2002, veteran documentary filmmaker Maryann De Leo decided to visit the Ukraine and Belarus, and the result was her 20-minute video "Chernobyl Heart," which won the 2004 Academy Award for Best Documentary Short Subject.

Two of De Leo's friends told her about a "shocking" photo exhibit they saw at the United Nations, and one said, " 'Somebody should make a film about it because no one's paid any attention to it,' so I thought maybe I'm supposed to pay attention to it."