I Don't Like Mondays (2006)

A documentary about the killing spree of Brenda Spencer, the 16-year-old schoolgirl who opened fire on a school playground in January 1979, killing two men and injuring eight children. Her only explanation of her actions was "I don't like Mondays". This incident was the first ever school shooting of its kind, and inspired the Boomtown Rats' number one hit song I Don't Like Mondays