In Waiting for 'Superman' documentary, the Oscar winner director Davis Guggenheim (who directed 'An Inconvenient Truth') analyzes the flaws in American Public school system. The documentary concentrates on the education of five students Anthony, Francisco, Bianca, Daisy, and Emily who wish to gain decent education. The film is written by Billy Kimball and Davis Guggenheim.

The Khmer Rouge murdered around two million people in the 1970s. He killed a lot of people in Cambodia which cannot be explained and it is still remaining dark. This documentary is clearly describs about Khmer Rouge. Many journalists and investigators searched a lot which may be more than a decade to figure out the detail information regarding that incident but every effort becomes useless.

The still-overwhelming story with the political profession of Eliot Spitzer, a shooting star whose stunning crash may well forever unclear his accomplishments, Alex Gibney Oscar-winning documentarian has all the elements for a potboiler: corruption, greed, power, sex, jaw-dropping hubris and overweening ambition.

But with "Client 9: The Rise and Fall of Eliot Spitzer" there is this: Emerging from the shadows of previous media reporting to seem -- and in some circumstances sneer -- facing Gibney's unblinking cameras are a host of characters that could make Dickens weep with joy.

Joan Rivers: A piece of work is one of the most fascinating documentaries which entertain audiences through the life of Joan Rivers, a celebrated comedian. One of the most dynamic woman personalities, Rivers is still writing books, stories as well as some humorous jokes. It is the best feature of Rivers that no one finds a small hint of anger and ruthless in her daily life as well as she never feels self-pity.

She loves writing and always takes part in creative work that will make her a different woman. A Piece of Work portrays her creativity which opens with a great close ups of surgical enhanced of Rivers, bruised-China-doll that avoids its traditional culture.