Horror High (1973) Nerd uses chemistry set to punish his tormentors. It's I was a teenage Mr. Hyde with a killer gerbil thrown in. TIL: Chemist priest Fr. Julius Nieuwland developed the process that led to the first synthetic rubber. Because the Church hates science (eyeroll).
Tales from the Quadead Zone (1987) Anthology from the auteur behind Black Devil Doll From Hell. Astoundingly amateur, but weird enough to earn cult status. TIL: In auteur theory directors are to movies what God is to all creation. Creators leave an indelible identifiable mark.