Documentary
Documentary films have a big difference in opposition to featured movies. There are no committed actors and no arranged locations, everything is real and not staged. People, animals, situations and histories are real.
The most successful documentary film ever was Michael Moores “Fahrenheit 9/11”. The documentary brought around 223 Million US Dollars and was on the fore of the American cinema charts. Fahrenheit 9/11 is about the terrorist attack on the World Trade Center.