Continuity mistake: When Ian films the Chipettes during the sing-off, he says, "If you like what you see then call Ian Hawke." But when someone else plays the video back later, he says, "If you're interested, then call Ian Hawke."
Continuity mistake: When Falfa's Chevy flips over, we can see that it has no fuel tank at all in it. However, in the next shot the car now has a visible fuel tank, and it explodes.
Continuity mistake: In the scene where Charlize Theron and Christina Ricci are in the car and Christina is driving, the camera pans to Charlize smoking a cigarette. The first shot it is half way done, the 2nd time it is at the filter and then again half way done and then it's gone and she lights a brand new one. (01:10:05)
Continuity mistake: In a bus scene Crash is shown holding a guitar talking about being in the majors. In one scene he's just holding the guitar, the next he has a pair of sunglasses in his hand while holding the guitar. The next scene the sunglasses are gone. A couple of shots later the guitar is sitting in the seat next to him. When Laloosh challenges Crash to a fight, he's holding the guitar again.
Continuity mistake: When Ethan Hawke and Uma Thurman are escaping form the party, the sleeve of Ethan's suit is ripped under the armpits when he hits the cop but in a few seconds you see his sleeve completely fixed. (01:11:40)
Continuity mistake: When Anne is running along Camden Place with the houses on the right, as she stops to talk with Harriet there is a gentleman with a walking cane and lady on each side walking ahead of them. As Anne starts to run away the camera faces her as she is looking along Camden Place from the reverse angle i.e. with the houses on the left, the gentleman and ladies are now behind when they should be out of shot behind the camera. (01:23:30 - 01:25:20)
Continuity mistake: When Alan is trapped on the floor, and the game is placed over his head, Sarah rolls the dice which fall on the lower left corner. When the angle changes they've moved further to the right.
Continuity mistake: In the scene when Dorothy hands her bible to Desmond on the bus, he is seated on the passenger side. However, after the bus departs, he is suddenly seated on the opposite side. (00:26:45)
Continuity mistake: When Paul goes to get pizza and a movie for Dora, the movie messes up the order that he gets them. First, he goes to the pizza place, and picks up a pizza, you can clearly see him holding a bag. Then, he goes to the video store (with a cameo by David Spade), he has nothing in his hands. Then, he has both after.
Continuity mistake: When the two X-philes are getting on top of the poolhouse roof, you can see a microphone angling itself back and forth between characters as they say their lines.
Continuity mistake: In the split screen scene when Lauren removes Sean's sunglasses, you can see that after the shot pans outward where both are facing each other, they are actually several feet apart. There is no way she could have reached his face from where she is standing. (00:37:01)
Continuity mistake: It's pretty interesting that Charlotte is supposed to be suffering from a terrible heart condition, yet whenever she's in the hospital, there's never a heart monitor anywhere around.
Continuity mistake: In the scene in the Beatles hotel room where Nancy Allen comes out from under the cart with the cokes on it, when she first sees the Beatles' guitars, notice that in the very first scene, the Hofner bass is left handed (the pick guard is on the left as you're looking at it), then it cuts to her, then when it cuts back to her rolling on the floor with the bass, it's suddenly right handed, then when in the last scene with her handling it, it's left handed again.
Continuity mistake: During the birthday party, the cigarette over Brandon's ear switches from right ear to left ear.
Continuity mistake: When Katherine Heigl and her sister are having a fight, her sister throws a portable phone onto the couch. The phone goes from just being visible behind one of the cushions to completely vanishing a few seconds later after the "Bridezilla" rant.
Continuity mistake: In the living room, during the party, Margaret O'Brien does a dance with a straw hat and cane with Judy Garland. In one shot Margaret has on blue slippers and in another shot she has on pink slippers.
Continuity mistake: Jack Lemmon puts the cat in Walter's truck. We see a close up of the cat's paws scratching holes in the car seat. A long shot shows the cat picking at the seat again, but there are no holes in the seat anymore.
Continuity mistake: In the scene where Larry's partner is writing on the white board, a line appears and disappears from the restaurant name Macelli's in the middle to the restaurant name Macelli's on the right side.
Continuity mistake: When the spaceship first springs a leak and begins to sink, the interior shots show it tilting to starboard; Taylor falls against the starboard bulkhead and the other two survivors need to brace themselves from slipping. All of the exterior shots of the ship show it level from port to starboard.
Continuity mistake: When Woody Harrelson finds the book of matches from the 'Griffon' (the boat his wife stayed on with Redford), the silver kettle in the kitchen shows a reflection of the cameraman wearing a green t-shirt.