For the famous blood geyser sequence, the filmmakers used a revolving room set. They put the set so that it was upside down and attached the camera so that it looked like the room was right side up, then they poured gallons of red water into the room. During the filming of this scene, the blood poured in an unexpected way causing the rotating room to spin. Much of the blood spilled out of the bedroom window covering Craven and Langenkamp. (x)

A Nightmare on Elm Street (1984)

R.I.P. to Wes Craven, one of the best.