Revealing mistake: During the interview, you can see a monitor with the lyrics of "Something", even though he is supposedly improvising.
Suggested correction: This is a deleted scene. It is in the extras on the DVD but it is not part of the movie.
Revealing mistake: In the intro (or one of the intros, rather), they narrate Pootie Tang's origin. A fake newspaper called "New York Pone" is shown, with the front page dedicated to baby Pootie and his invention of a new language. All fun and everything, but the prop is sloppy; you can read below the name of this fake 70s newspaper the URL of the New York Post' s website and the date in April 2001. (00:08:35)
Revealing mistake: During "Many a New Day", when Laurie sings "many a red sun will set" and before they all hear the Cummings girl laugh outside, Laurie and two others are looking into a mirror. The actresses are actually looking into the camera through a mirror frame, to give the illusion that we are seeing their reflections. When the girl with the long black hair joins them, you see her run in from the side, then her "reflection" in the mirror. However, if it was a real mirror, you wouldn't see her run in from the side. (00:44:00)
Revealing mistake: At the start of the montage in which Frollo ransacks Paris for the gypsy girl, the shot of the three soldiers kicking down the baker's door very briefly places the more distant soldier off to the right "in front" of the closer central soldier; this is a case of incorrect animation cel layering.
Revealing mistake: Right before Dodger walks into Georgette's room in search of Oliver, she talks to herself in the mirror. But at one point the reflection moves when she doesn't. (00:43:10)
Revealing mistake: When Dr Dolittle is talking to the parrot and it raises its left leg, you can see a piece of string running past Dolittle's head used to raise its leg.
Revealing mistake: When Pinky runs into the mirror, causing it to shatter, you can that the mirror does not shatter until Pinky falls onto the floor.
Revealing mistake: When Woody and Sharon are singing their 'Ol Devil Moon' duet, Sharon starts to sit up, but then the shot suddenly changes to them both sitting up, Woody in a fade behind her as she sings.
Revealing mistake: Tommy picks up a chair and breaks it on a desk, but the chair breaks just before contact. (01:25:30)
Revealing mistake: During "Never Say Never" Henri instructs Chantal to fly Fievel to immigration where he should be able to find his family. At one point during this shot, Henri's right wing casts no shadow on the Statue of Liberty - only an outline of the wing's shadow is visible. (00:23:25)
Revealing mistake: A scene in which a group of soldiers appears to be running uphill was obviously filmed with a tilted camera because all the trees in the background are leaning at a 65-degree angle.
Revealing mistake: Whenever Stupid Bat is flying, the wires pulling him up are visible.
Revealing mistake: After Bluto knocks Popeye out and he falls into the water, Bluto goes to jump in after him. Watch the water. Popeye just landed, but the water is really calm. And when Bluto hits the water, it's right on top of a face-down floating Popeye. As Bluto hits, Popeye's body bends almost in half backwards, revealing that it's a foam rubber mannequin.
Revealing mistake: Near the beginning of the film, when Clang is outside the Beatles' flat on his delivery bike, you can plainly see the rope tied to the front of it giving him a pull as he starts to ride off. In the next shot the rope is gone.