Continuity mistake: When Tori Spelling is lying in bed and the ghost pulls the sheet back and sees her ugly feet she doesn't have any socks on. As the ghost starts to have sex with her she has socks on. (00:30:30)
Continuity mistake: When Cindy is fighting the possessed cat, there's poop in the litter box, but the next time we see it the poop is gone. (00:33:00)
Continuity mistake: When Cindy is telling the Professor that she was attacked by a possessed cat, she points out the huge scratches on her neck and chest. The next moment she gets up and the scratches are completely gone. (00:34:15 - 00:36:40)
Continuity mistake: In the beginning of the movie Cindy drives towards the castle and sings along with the radio. She passes (and almost hits) a car. If you look through the back window, the car never comes by. (00:14:00)
Continuity mistake: In the scene with the Charlie's Angels re-enactment, the angels pick their legs up and the fountain makes it look like they're peeing. But seconds later, when they are fighting, the fountain has gone, even though they were just in the same room a few seconds before. (01:04:20)
Continuity mistake: When the butler is serving up the turkey, he holds up a plate full of what looks like turkey, salad and mash. When he puts it on the table, the plate just has turkey on it. (00:24:10)
Continuity mistake: When Theo enters the room in which Dwight is working in, a can of Red Bull sitting on the side vanishes in one shot, and then makes a healthy return in the following shot. (00:43:00)
Continuity mistake: In the scene of the fight between Cindy and the cat, after it hurts Cindy, the scratches disappear. (00:33:00)
Continuity mistake: When the two guys are facing off in their wheelchairs the doves fly by and poop on the bald guy's head. But as he starts to move the poop is gone. But in the next shot it's back again. (01:00:20)
Continuity mistake: After the man in the wheelchair first breaks his glasses. It is then in perfect shape in one scene, then broken again in another scene. This continues on for a few minutes. (00:47:30 - 00:56:45)
Continuity mistake: After Shorty hits Hanson with his car, Hanson's body flies up and falls back on the road, but if you look through the back window of the car, his body isn't there. (01:11:15)
Continuity mistake: During the scene where Dwight is handing out the goggles, and right before the part where Brenda asks about the walkie-talkies, if you look behind Dwight, you will see that there is one more pair of goggles in the cabinet. After Brenda asks the question, the cabinet is empty. (00:47:25)
Continuity mistake: When Hugh looks at the calendar on the wall, the calendar disappears in the shot where Tori is going up the wall. (00:30:35)
Continuity mistake: At the end of the film, when Dwight gets pulled into the room and sits down in a chair beside Ray and Buddy, Ray's shirt is orange. Then when Dwight says, "I can't feel my legs," it cuts back, but Ray's shirt is yellow. It alternates throughout this scene between orange and yellow. (01:06:00)
Continuity mistake: In the scene of the dinner, Hanson cuts the turkey, but in a scene when Dwight is speaking, the turkey is perfectly OK. (00:24:35)
Continuity mistake: About Dwight, the guy in a wheel chair, and his hair. In the scene where he fights the ghost, they change all the time. It starts out as a mess. And then it's in a pony tail. It keeps changing throughout the whole struggling scene. (01:07:07)
Continuity mistake: When Dwight is handing everybody goggles, cup walkie talkies etc., the red numbers on the machine nearby keep changing in most shots. You can clearly see "02.38.58" and it is counting down. Then in the next shot it is "02.39.48" and is counting up. Then it is "02.17.00" etc. (00:46:15 - 00:47:55)
Continuity mistake: In the opening scene when the priest is playing the piano, in close shots of him you can see the back of the musical sheets sitting on the piano, and they are just pages of musical notes. Yet between two shots a book which says "Eckstein" appears. Then in the next close shot the "Eckstein" booklet isn't there and just musical sheets are visible. (00:00:25)
Continuity mistake: While Cindy is fighting with the cat, the size and position of the scratches in her chest are continually changing. (00:33:10)
Continuity mistake: When Cindy and Buddy are in the cool room and she is talking on the cups, you can see what appears to be blood on the bottom of her pants. In a scene cut from the film (it's on the DVD), Cindy covers the floor in blood before they get pushed into the cool room (spoofing Hollow Man). Since scene wasn't in the film, she shouldn't have the blood on the bottom of her pants. (00:55:35)
Answer: I want to know this so badly as well and can't find it. The Graduation Song is not right.