Factual error: The lake that Jack told Rose he went ice fishing on when she was threatening to jump is Lake Wissota, a man-made lake in Wisconsin near Chippewa Falls (where Jack grew up). The lake was only filled with water in 1918 when a power company built a dam on the Chippewa River, six years after the Titanic sank. (00:39:05)
Plot hole: When Andy turns into a werewolf, he kills both Amy and Detective Benbou. Later in the morgue, Amy tells him because of this that she is forced to become his "rotting sidekick." If this is completely true, then Detective Benbou should also be following Andy around but he isn't seen after Andy manages to escape from the morgue.
Continuity mistake: When Sam and Anton are finished fighting (Anton is in an upper-body cast), the arm support on his right keeps changing. First it's a short piece coming from the elbow, then it is a long piece coming from the side, and then back again.
Visible crew/equipment: The cameraman is visible in the reflection of window while Holden is walking back to his car in the rain.
Continuity mistake: In the beginning of the movie, when the little girl is falling, they film her falling all the way down backwards. When they flash to the young Simon's face and the priest and back to the girl she lands face down.
Continuity mistake: When George takes her to the airport (in NYC), they are at O'Hare. Later, when she gets off the plane, she's still at O'Hare.
Revealing mistake: When the killer is attacking Cici on the balcony, you can see blood on Cici's back before she is even stabbed and both times she is stabbed, the knife that comes out of her back has no blood on it. (00:33:20)
Plot hole: Dafoe and Bullock leave the ship a long time before it hits the tanker and there is a lot more time before it crashes into the town and even more before Alex gets on that speedboat. No matter how fast he could have gone, there is no way he would have caught up with them.
Continuity mistake: When Lolita begins to undress in front of Humbert, she is wearing her school uniform. Her shirt first appears tucked in, then out and then in again.
Continuity mistake: In the scene where Lyle and Ursula slide through the river then over the falls, when they go over the waterfall they are both dry.
Visible crew/equipment: When Ethan Hawke is picking out a suit and shoes, you see a distinct hand on the left side of the closet holding up what must be a false wall. (00:33:25)
Visible crew/equipment: The camera searches for Dora whilst Guido plays music through the open window. In her room, you can easily see a cable (from a microphone or a spotlight?) on the left side of the screen. (01:42:00)
Revealing mistake: Right after they "create" Leeloo and she is lying in the plastic cage with the little straps on her, the guy approaches her and says, "if you want out, you are going to have to work on your communication skills." She gives him a dirty look, and then you can see a huge hole, pre-cut in the glass, that she busts her hand through. (00:29:47)
Visible crew/equipment: Early in the movie, Melvin walks for the first time to the restaurant in which Carol works. As Melvin turns the corner on the sidewalk and walks towards the camera, he is surrounded by extras playing people he must dodge. If you look in the center and right background, you will see New York spectators standing in the middle of the street, watching the movie being made. (00:10:20)
Continuity mistake: After Nick becomes a hero, he wears a cast on his right arm. However, when he and Kate go to dinner with Kate's boss, Nick's cast mysteriously disappears for one shot. They are sitting at the table at the beginning of the dinner and Nick picks up a glass with his right hand, with no cast. The next time you see Nick, he has a cast on his right arm again.
Continuity mistake: When Fred Randall keeps expelling gas, the glass on his helment keeps reappearing and disappearing.
Continuity mistake: In the scene where Blank gives Debi an aeroplane ride on his feet, he takes off his cap to lie on the bed. When he gets up to leave the cap appears in his hand without his ever retrieving it from the bedpost where he hung it.
Other mistake: When Tommy Davidson and Jamie Foxx are both running and they run into, then flip over a car door that opens, if you look closely, you can clearly see the hair piece worn by Jamie Foxx flies right off his head.
Revealing mistake: There is one scene where Alicia Silverstone is being taken away, and in the window, in the background, you can see a metro train with the letters on the side stating BC Transit and a picture of the British Columbia flag. Yet, the whole movie supposedly takes place in Washington state.
Continuity mistake: When Billy Connolly and his on screen brother have just been for a swim, they are drying themselves off on shore. Just to the left of his brother you can clearly see someone windsurfing in the background - not bad for the late 19th century.