<P> 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, because the normal film blood would not make the right effect for the geyser . 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 . The scene where Nancy is attacked by Krueger in her bathtub was accomplished with a special bottomless tub . The tub was put in a bathroom set that was built over a swimming pool . During the underwater sequence Heather Langenkamp was replaced with a stuntwoman . The "melting staircase" as seen in Nancy's dream was Robert Shaye's idea; it was created using pancake mix . </P> <P> Jsu Garcia, who was credited as Rod under the name "Nick Corri", says the production was difficult for him . He had recently come off a period of homelessness, and was still dealing with the depression from that by snorting heroin in the bathroom between takes . In 2014, he revealed that he was high on that drug during the scene between him and Langenkamp in his jail cell . "His eyes were watery and they weren't focused," Langenkamp said . "I thought, Wow, he's giving the best performance of his life ." </P> <P> A scene from Sam Raimi's The Evil Dead appears on a television when Nancy is trying to stay awake about halfway through . This was in response to Raimi featuring a Hills Have Eyes poster in the film . Craven was so impressed that he included it on the TV, and in return a Freddy Krueger glove was featured in the tool shed in Evil Dead II: Dead by Dawn . </P> <P> Wes Craven originally planned for the film to have a more evocative ending: Nancy kills Krueger by ceasing to believe in him, then awakes to discover that everything that happened in the film was an elongated nightmare . However, New Line leader Robert Shaye demanded a twist ending, in which Krueger disappears and the film all appears to have been a dream, only for the audience to discover that they are watching a dream - within - a-dream - within - a-dream, where Fred reappears as a car that "kidnaps" Nancy and her friends, followed by Fred reaching through a window on the front door to pull Nancy's mother inside . Both a happy ending and a twist ending were filmed, but the final film used the twist ending . As a result, Craven (who never wanted the film to be an ongoing franchise), dropped out of working on the first sequel, Freddy's Revenge (1985). Production wrapped in July, and was rushed to get it ready for its November release . </P>

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