Bowling for Columbine is a 2002 American documentary film written, produced, directed, and narrated by Michael Moore . The film explores what Moore suggests are the primary causes for the Columbine High School massacre on April 20, 1999, and other acts of violence with guns. Moore focuses on the massacre took place and some common public opinions and assumptions about related issues. The film also looks into the nature of violence in the United States.
A significant international success, the film brought to the international film festival, The Academy Award for Best Documentary Feature , the Independent Spirit Award for Best Documentary Feature , a special 55th Anniversary Prize at the 2002 Cannes Film Festival ,  and the César Award for Best Foreign Film .  The film is considered one of the greatest documentary films of all time .