Continuity mistake: When Tommy walks into the bar while Samuel L. Jackson is there, he is wearing a greyish/blue t-shirt that is soaked in sweat. The shot changes to Samuel L. Jackson and then back to Tommy, but now he's wearing a plaid button-down shirt over it that he didn't bring into the bar with him. Where did he get it and how did he get it on in two seconds flat?
Continuity mistake: When Ellen DeGeneres is looking through the family photo album, she partially lifts the page to turn it, showing that the following page is blank. The next shot from a different angle, she turns the page to see more pictures. The same thing happens again right before she finishes looking through the album.
Continuity mistake: After Miss Elson writes the word "Pirates" on the blackboard, its appearance changes twice.
Continuity mistake: While Francis is sitting on his bed "getting his work done", he appears to be holding a magazine. When it changes to a frontal shot he is holding a legal pad. (00:09:00)
Continuity mistake: When the preacher is in his car talking to Dudley, how far wound up the window is differs.
Factual error: Although the movie supposedly takes place in Blaine, Missouri, you can see Texas flags in certain shots. The movie was filmed in Texas.
Visible crew/equipment: A safety cable and harness are visible during the fight scene, on top of the industrial complex.
Continuity mistake: When Emma and Mr Knightley kiss for the first time near the end, they are both tilting their heads to the right when the camera angle is from Emma's perspective. Then, the instant the camera changes to Mr Knightley's perspective, they are suddenly tilting their heads to the left.
Continuity mistake: When Cameron Diaz is telling her husband about Kent, there is a boat outside the window. The boat moves in a weird way. It goes from one side to the other in the same camera angle.
Factual error: Jerry Falwell and Charles Keating never knew each other personally in real life.
Visible crew/equipment: In various shots during the basketball scenes the camera zooms in on the cardboard cutout people that were used to make the Boston Garden appear more crowded.
Other mistake: In the scene when Gunther jumps in the guy's car who doesn't pay him, he takes off the collection sheet and the holes for the clips are on the bottom. All holes for collecting books are on the top, so he is reading the collecting card up-side down.
Audio problem: There is a scene when Alexia eats a muffin. On the first bite, it makes a sound as if it was hard.
Continuity mistake: Otter Bob holds out a bottle of liquor at Isaiah after he kills a bear. In the close-up, Bob is holding the bottle by the neck. In the wide shot, he's holding it by the body.
Visible crew/equipment: After Thorne gets his "temporary permit" to go cut down the trees, he's seen getting into his vehicle. Above it, a boom mic comes into frame.
Visible crew/equipment: Whilst Dignan is leaving the motel, Inez gets Rocky to say to Dignan "Tell Anthony, I love him", to which Dignan says "All right, man, okay" and walks off. The following shot after this is of Dignan walking past the side of a building. Right at the start of the shot, for a split second, the reflection of the cameraman can be seen reflected in the window beside him. (00:48:45)
Revealing mistake: When the Leprechaun gets sucked into space, he grabs onto the edges of the cargo bay's doors. You can see pieces of his hands disappear into the doors, showing that it's CG.
Factual error: When the band are playing "March of the Cobblers" at Saddleworth, Andy (tenor horn) and Harry (euphonium) are heard playing the main tune of the march. In real life however, these two instruments do not play the tune, they have separate parts for the accompaniment.
Deliberate mistake: In the scene where Joan and the kids pile into the station wagon after Stanley is kidnapped, Joan tells the kids to hold on tight and puts the car into reverse. However, in the matter of seconds that have gone by, Joan hasn't even started the car, yet she was able to put it in reverse and drive off. Even if she had the skills to start it that fast, you would hear the car turn over. The car is never heard turning on.
Character mistake: Reverend Sultan stated James Roper lost to Terry Conklin 10 years ago. Later at the press conference Roper stated he was 17 at the time. During promotional videos for the fight, the "tale of the tape" listed Roper as being 30 years old, not 27. (00:21:29 - 00:33:37)