Continuity mistake: At the time they were all little kids, the veteran from the war (Brendan Fraser) gave them cigarettes. When the girls were leaving, Teeny took one last puff and stopped it out, in the next shot she throws down the cigarette again and steps on it. (00:45:20)
Continuity mistake: During the sales trip the two main characters stop at a gas station to get gas. during this stop Tommy bends the door back and after some struggle gets it to the normal door position. Before Richard gets back to the car however there is a shot of the door all dented up but in place. When Richard pulls the door off it falls to the ground and there isn't a single dent on it. (Also, is it me or does it seem a little ridiculous that someone that loves his car so much didn't notice the large dent down the edge of the door as he faced it while walking from the station to the car?)
Continuity mistake: When they are arguing in his bedroom, her scarf and coat are closed at one point, then open, then closed.
Other mistake: The Magic Eye Picture that Willem is looking at throughout the movie is NOT a sailboat. If you pause the movie and find the image it's actually three rows of 3D shapes.
Visible crew/equipment: During the fight between the Rippers and the guards at Water and Power, you can see the stunt wire attached to one of the Rippers.
Continuity mistake: When Gloria is confronting her "baby's daddy", her earrings keep disappearing and reappearing.
Continuity mistake: When the soccer coach is talking to the team in the class room she pulls down the world map on the screen. The camera flips back to the team for about 2 seconds and when the camera turns back to the coach the screen is pulled up.
Continuity mistake: When Lucy and Jack are walking along the river, a long shot shows them approaching a lamppost with a kissing couple. In the next shot, they pass the lamppost but there is no one there. They finally pass the couple at the next lamppost. (00:46:55)
Suggested correction: The couple is there. They are walking one lamppost before the couple in the long shot, and they are walking very slowly. In the close-up, it shows them just passing the lamppost before the couple. When they do pass the next lamppost, the couple is there as they were in the long shot.
Continuity mistake: During the scene in which Bart, Art's "brother" takes Darryl Hannah out to dinner, watch the water glass by her. You'll see it's full. When they switch camera angles notice that the glass becomes empty, half full, full again, then it fills with wine, then half full of wine, then back to water.
Revealing mistake: When Dracula goes to grab the cell bars on the window to free Reinfeld, the bars are obviously not metal as they shake and have a slight bend to them.
Continuity mistake: In the scene where Johnny and Kamal are going out for a night on the town, they first walk into the place and they go to their seats. Notice the Reserved tag on their table -- when they sit down, it's gone.
Continuity mistake: In the scene where Max cuts down the bridge and the real scout master dives after Max cuts it down, in the backround in the top left corner you can see the scout master get up, then when the camera goes to the scout master, he gets up again.
Continuity mistake: When Sinbad is sitting on a bridge with Phil Hartman, Phil is eating a Big Mac that Sinbad is eyeballing due to his forced adoption of having to be a vegetarian to keep up with his lie. In one shot the Big Mac is perfect in every way, in the next it's totally messy, almost as if it were to fall apart, and then back to perfect again.
Plot hole: The group poison a dozen or so people and dispose of their bodies by burying them in their own garden. Some of their victims are notable celebrities - television presenters, authors, leaders of large and vocal pressure groups. Certainly some of them are nobodies, but nonetheless they are going to tell friends where they are going for dinner! Not one of these people told their assistants or their secretaries or a friend or a relative - a spouse? - where they were going and what they were doing on the night they were murdered? Not one of them? Not one single trace was left for the police to follow? Absolutely impossible.
Continuity mistake: In the scene at the bar where Stuart and Donny are playing pool, Donny is aiming at the red 7 ball. However, when the camera shot switches to over Donny's shoulder he is lined up with the white cue ball and knocks the red seven in.
Factual error: The equation written on the board does not come out to be "11", in fact, it's not really solvable because it doesn't have 2 sides, just a "?" on one side.
Continuity mistake: When Swayze gives the stuttering guy the book, it is a paperback. But later when he's reading it, it's a hardback. (01:07:05 - 01:09:00)
Continuity mistake: In the scene where Kat is being introduced to her new classmates, Casper is seen tying the students' shoelaces together. This includes the snobby blonde sitting in front. But when the camera pans out, her feet are clearly too far apart for this, not like how they showed them while being tied.
Continuity mistake: In a scene taking place in the nursing home where Antonio Banderas works, they are celebrating a resident's birthday. There's a record playing and everybody's shown clapping and smiling, enjoying the tune. At one point, Sarah Jessica Parker and Antonio Banderas are exchanging dialogue and the music stops. However, the resident in the backgroud hasn't noticed - she's still clapping along.
Continuity mistake: Towards the end, when Frank is about to kill the tied up Pauly Shore and Tia Carrera, he has a plastic glove on when his hand is raising the knife. When he drops his hand to his side and you get a different camera angle, he is not wearing the glove anymore.