Some good shit.
"Massacre at Central High (released as Blackboard Massacre in the UK) is a 1976 American thriller film directed by Rene Daalder and starring Derrel Maury, Kimberly Beck, Robert Carradine, and Andrew Stevens. The plot follows a series of revenge killings at a fictional American high school, after which the oppressed students take on the role of their bully oppressors. Despite its title, it is not a slasher film but an unusual blend of political allegory, social commentary, and low-budget exploitation; with the exception of the final sequence, no “adult” characters (such as teachers and parents) are seen.
It was shot on 35mm film, and has a running time of 87 minutes.
The film’s director, Rene Daalder, described Massacre at Central High as “eerily predicting punk and Columbine”. It has also been cited as a possible influence on the 1988 black comedy Heathers."
I mean it was the director who said it and those types tend to toot their own horns a lot.