Other mistake: When Alex, Marty, Gloria and Melman are talking together inside the boxes, Alex has three holes in his box allowing light in for him. Melman, Marty and Gloria have that too, but Gloria's box is lying under Alex's and Marty's, so it can't get as much light - but it does.
Suggested correction: When we see the outsides of the box on the ship we can also see little gaps caused by wood planks nailed to the sides of the box so there should be a little light coming from in between to Gloria's box holes.
Other mistake: When the pennant game is being played, Chicken Little's team is down by two runs with a score of 14-13, but if you add the score up off of the board before Little's two run hit, it equals 15.
Other mistake: Cloud finds Tifa lying on the flower-patch in the church, after the fight with Loz. When we first see her she has her leather gloves on, then the next shot her hands are bare, and again in the next shot she has her gloves again.
Other mistake: During the opening credits (right after the fish chopping shot) two bearded gentlemen meet in the street. As they part, Lord Barkis suddenly appears behind them. But where did he come from? He didn't walk in from either side, we would have seen him. Nor was there any door he might have come through.
Other mistake: When Ponies are flying back home from North Pole, you can see Cotton Candy among them. as a pegasus.
Other mistake: Throughout the movie large footprints of heffalumps are shown. However, when the heffalumps bound around, they never create any footprints of any kind.
Other mistake: When Wallace is eating the celery, you can see that the bottom of his throat looks really weird, as if the model wasn't complete.
Other mistake: After the Joker has become a vampire, you can still see his reflection in metal poles and such while he is chasing Batman in the bloodbank. (00:47:00 - 00:49:00)
Other mistake: When Stitch glitches out during the hula class, when he gobbles up the chair that Moses Puloki is holding, Stitch is actually munching in front of the chair while it breaks by itself behind him. (00:34:30)