The scene of pig's blood being dumped on newly crowned prom queen Carrie White is easily the most iconic of the film. It took days to complete, and rather than reapply the fake blood (made of corn syrup and food coloring), Sissy Spacek slept in the "bloody" clothes until the scene was in the can, in order to preserve continuity.
However, Spacek revealed in a 2014 with Yahoo! Entertainment that getting the blood dumped on her wasn't that bad itself. "They warmed it up beforehand, and both times I remember it feeling like a warm blanket," she said. In fact, it was Spacek's husband Jack Fisk who poured the blood on her.
Such attention to detail and dedicated filmmaking is largely what makes "Carrie" so memorable, even nearly 50 years since its release. A lot has changed in the horror genre since then, but still few films are as haunting and devastating as "Carrie."
