Learn or die. Violent street gangs make one high school a living hell, forcing the administration to take extreme measures in "Class of 1999" (1990), director Mark L. Lester's terrifying mashup of sci-fi and horror. Principal Langford (Malcolm McDowell) has had it with murderous, drug-addled thugs making a bloody mockery of education, so after consulting with a robotics expert (Stacy Keach), he hires some new teachers. Ms. Connors, Angel, and Mr. Hardin (Pam Grier, Joshua Miller and John P. Ryan) aren't typical educators, though. Harsh discipline is a specialty for these androids who are programmed to kill.