Continuity mistake: In the opening scene with Michelle driving, there is a wide shot of the dash board, and you can see the pointer is on fifty-eight mph. Then in the next close up of the low fuel signal, the pointer is no longer there. (00:03:05)
Continuity mistake: When Michelle pulls up into the gas station, her windshield wipers are on. The wipers are just about to swing upwards. Cut to a close up and they are no longer in the process of swinging upwards but, are down. (00:03:50)
Continuity mistake: When Michelle thinks she is being attacked, she grabs the phone and throws it through the window, and it smashes out all of the glass. Yet as she climbs out, there is an amount of glass which has reappeared in the side ledge. (00:06:45)
Continuity mistake: When Michelle gets back into her car after escaping the gas station attendant, as she drives following the moments up to when she is decapitated in her car, her wet fringe keeps on changing position between shots. (00:07:25)
Continuity mistake: Inside the radio station tower, Sasha is just being introduced to a new speaker calling in. The equipment assistant holds up a card saying 'Felicia' for Sasha, with his left hand. In the next shot it is in his right. (00:08:25)
Continuity mistake: When Sasha is on the air in her radio station talking to a caller who has phoned in, she sits down and removes the outer cover on her microphone. However in the next shot the cover is back on. It is then off again in the next shot. (00:08:35)
Continuity mistake: During the scene with Parker, Natalie and Brenda talking in the coffee lounge, the bottles of water on the table in between them rotate on their own accord. Additional items move and appear as well as the scene goes on. (00:09:20)
Continuity mistake: When Natalie and Brenda are walking across campus and come across the stall with Paul's newspapers, Natalie picks up one of them. Between shots, the way she holds it open changes from holding it in the middle, to the top. (00:19:40)
Continuity mistake: When Damon and Natalie are in the car, Damon begins to tell Natalie about his girlfriend who had a syndrome. He brings his hand up to his face; between shots the location of his hand on his face keeps changing. (00:25:45)
Continuity mistake: When Damon leaves the car to go into the woods to pee, Natalie soon becomes confronted by the lunatic. She opens the drivers seat door and the window is fully closed. In the next shot it is wide open and she rolls it up frantically. (00:28:20)
Continuity mistake: When Natalie is in the car, all of a sudden the tapping on the car roof starts, like the Urban Legend. The thuds and taps cause the passenger seat sun-visor to fall down. But in the next shot from outside, it is pushed back up. (00:28:50)
Continuity mistake: When Natalie is in the car, she is unaware that tied to the back is rope which is also hanging Damon from the tree. When she reverses, this causes him to crash into the windshield. However between shots the way he is falling and the way he lands is inconsistent. (00:29:55)
Continuity mistake: When Tosh is on the computer she is in a Gothic chat room. As she types her first message you can see it is for the entire room. But as the shot changes it is now for just one user. It happens too fast for it to be a technological intervention. (00:36:20)
Continuity mistake: In the first shot of Tosh at the computer in the Goth chat room, she has black lipstick on. From then on her lips are clean; leaving it open for her to say that she 'is just going to get ready', to her chat room friend. (00:36:25)
Continuity mistake: At the frat party, the song Love Rollercoaster by Ohio Players is played, and one of the guys points out the scream, which is the scream of a woman being murdered. However the scream we hear in the film is not the same scream which is in the song. (00:57:40)
Continuity mistake: When Natalie and Paul are talking upstairs at the party, at one point Paul puts his hand up by Natalie's ear. Natalie then puts her hand up on Paul's wrist. However between shots the hand she placed on his wrist keeps appearing then disappearing. (00:59:30)
Continuity mistake: When Sasha is pushed over the banister by the killer, she grabs the corner of the stairs; as she hangs on, her hands change position. In one shot she has one hand either side of the corner. Then she has both hands on the right side, then back again. (01:07:55)
Continuity mistake: When Natalie opens the door and Parker's body falls out, it is covered in foam from the way in which he was killed earlier on. Between shots the foam covering his differs. Also, the position of his right arm changes between these shots. (01:19:50)
Continuity mistake: Near the end of the movie Natalie finds Brenda laying on the bed. Then suddenly Brenda gets up and suprises Natalie by punching her on her right [our left] cheek. However when Natalie awakens, tied to the bed, the bruise is on her other cheek. (01:21:00)
Continuity mistake: Brenda is showing Natalie a slideshow using a projector to show her how her boyfriend was killed; she firstly shows a photo, then a newspaper article. The article is left projected for the whole scene. That is until Brenda is shot out of the window, and now it is the photo that is back to being projected. (01:22:20 - 01:28:45)
Answer: This urban legend involves wannabe gang-bangers being required to make a kill to join the gang. In this scenario they drive with their headlights off and kill the driver of the first car that flashes their headlights at them. This was proved to be a false urban legend by snopes.com where more information can be found at http://www.snopes.com/horrors/madmen/lightsout.asp.
OneHappyHusky