Duck! The Carbine High Massacre

Duck! The Carbine High Massacre is a 1999 American teen black comedy crime film about a school shooting. Released just over six months after the Columbine High School massacre event, it was written, produced and directed by William Hellfire and Joey Smack, who also starred. After the film was released, Hellfire and Smack were arrested for possession of weapons on school property. The film is said to have helped pay for Hellfire's legal fees.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.