Sissy Spacek was absolutely the perfect choice for this adaptation of Stephen King's debut novel. Her performance was repugnant and charming, often at the same time. I felt terrible for her but I was horrified of her. In the end, though, I was rooting her on. Brian De Palma didn't waste any frames on this one; and the pacing of the final climactic prom scene creates whiteknuckled tension. Extra points for the effect of the car going backwards in the dream sequence!