'' 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 in 1999 and other acts of violence with guns . Moore focuses on the background and environment in which 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
Columbine High School massacre
Columbine High School massacre
Bowling for Columbine