Continuity mistake: Keep watching when Glen sneaks through Nancy's bedroom window for the lighting in the bedroom. When the exterior shots are shown the light is always on but it is sometimes off inside.
Plot hole: Following Glen's death, Nancy tells her father to come across the street in 20 minutes to catch Freddy. She then goes to her house, checks and sets her alarm clock, and proceeds to rig the entire house with booby traps, including filling a light bulb with the contents of several shotgun shells, and has a heart-to-heart talk with her inebriated mom. When she gets back to her room to go to sleep, she checks her clock again. The time on the clock has advanced only ten minutes, not nearly long enough for everything she did.
Visible crew/equipment: When Nancy is in the dream clinic the doctor attempts to give her an injection. As she pushes the doctor away, the bedsheet falls slightly and Freddy's hat can be seen for a couple of seconds. In the next shot, the sheet is above her waist again at which time she reveals that she pulled the hat from her dream.
Deliberate mistake: As Nancy and her Mum are leaving Rod's funeral, you can see the shot of them leaving the funeral has been sped up. Watch the Volvo "jerk" as it pulls away as the speed is rapidly increased.
Continuity mistake: In the bath scene, Nancy is falling asleep and is awoken by her mother then starts falling back to sleep and her inflatable pillow is roughly 8 inches above her head. When the shot changes to face her, the pillow is now below her head.
Continuity mistake: Just before Nancy goes into her final confrontational dream she sets the countdown on her wristwatch. The closeups are of a chunky watch with a thick strap, but in the long shots she is wearing a dainty pink ladies watch.
Audio problem: When Nancy wakes up from her dream at the Dream Clinic, the doctor tries to give her a shot and you hear the nurse say "This will help you sleep", but the nurse's mouth is closed.
Continuity mistake: When Glenn dies, the blood pours up from his bed. It's seen splashing directly onto the lamp above, though in the next shot after his mother walks in, the lamp has shifted and is completely clean.
Continuity mistake: After Nancy wakes up from her final dream that draws Freddy out, the coffee pot behind her is full of coffee. When Freddy jumps from behind the bed, Nancy runs to a now empty coffee pot and smashes it on Freddy's head.
Visible crew/equipment: In the final scene in Nancy's bedroom, she swings the door open very fast and you can see the camera in the reflection.
Continuity mistake: When Nancy goes to the police station in her dream, she looks down at Rod through a window as he sleeps in his cell. The first shot shows him sleeping completely on top of the covers but when Freddy enters the cell, Rod is partially covered with a sheet.
Continuity mistake: When Glen sneaks into Nancy's room, she has him turn off the lights and it is pretty dark in her room. When she wakes up to her alarm, it is still night outside but now it is a lot brighter in the room.
Continuity mistake: When Nancy is walking to school, Tina's boyfriend grabs her and he is not wearing a T-Shirt, only his black leather jacket. When she visits him in jail he is wearing a white T-shirt and the leather jacket. When you get arrested they don't let you have a jacket.
Continuity mistake: When Nancy leaves the kitchen to go to school, her orange backpack is empty, but when she storms away from her dad after he arrested Ron, her backpack is full.
Continuity mistake: Before Freddy kills Tina and takes her above her bed, the amount of blood on the sheets changes between shots.
Answer: 1. Freddy is the ghost of a child killer, he is very difficult to be rid of. He did not die at the end of this film. 2. It is possible to bring items and even people in and out of the dream world. Although it is never explained in detail how. 3. It was a dream, but as seen in the film, that's not a good thing.
MasterOfAll