Brian De Palma’s Carrie (1976) turns the school bullying, body shame and the overwhelming emotions of teen life into the stuff of horror. You’d be hard-pressed to find a film that makes adolescence look worse. Horror movies realize our worst fears, and in adolescence, we’re terrified of getting rejected by our peers and puberty transforming our bodies beyond recognition. The thing every teenager wants most is to control their classmates, their parents, and their own rapidly changing bodies and emotions. But when Carrie White resorts to mind control instead of normal self-expression, the result is disaster. We explain the ending of Carrie and what it all meant.