Continuity mistake: After the failed attempt to drop a mace on Mr. Ginormous' head, the giant grabs Jack, Tom, and Jerry and taunts them. He then throws them onto the table and Jack's hat comes off and flies away from him. Shot changes angle to Jack trying to sit up and pop off at Ginormous and suddenly his hat is right next to him.
Continuity mistake: Jack is shown scaling across the thread they bridged between the wall shelf and the painting, and he gets half way across while Farmer O'Dell is distracting Mr. Ginormous with his recitation. Yet when it shows him again, Jack has made barely any distance across the thread at all.
Continuity mistake: During his musical number, Mr. Ginormous takes the Shoe House from the "Little old lady that lived in the shoe" and puts it on his foot to wear, ripping the roof off and forcing the residence out. Yet a little later, as the people of Fairyland realize that Jack is the Jack from the prophecy, the little old lady and the kids are shown back in their shoe house, with it perfectly fine and back to the way it was.
Continuity mistake: Once Jack puts the beans in the ground, Jerry covers them up with dirt and pats it down flat. The dirt is perfectly level with the rest of the ground. Then Jack yawns and stretches, and it cuts back to Tom and Jerry. Suddenly the dirt covering the beans is a small mound sticking up with Jerry standing on it.
Continuity mistake: After Jerry slaps the tag on Tom's box to ship him to Africa, Tom busts out and the tag is torn and on the side of the box towards the street and Jack. After Jack pulls Tom out of the box, the tag is suddenly on the other side of the box with Jerry standing on it, and it seems to be in one piece.
Continuity mistake: After hearing the news that Mr. Bigley will be tearing down Storybook Town tomorrow, Tom puts himself in a cardboard box on the side of the road to give himself up for adoption. Jerry comes over and packs him in the box and slaps a tag on it to ship Tom to Africa. But Tom busts his head out the top of the box and looks at Jack with sad eyes. From this angle, the part of the box where he popped his head through is straight around the edges and fits up him like a collar. Jerry is standing beside his head with both his hands on his hips. The shot cuts to behind Tom, and suddenly the break of the box around Tom's neck is jagged and ripped and not straight, and Jerry suddenly has one hand on his hip, and resting his head on the other.
Continuity mistake: Once Jerry gets Tom's attention by smacking him over the head with the violin bow, they look down and see the tub that Hermione will be jumping into. This view shows it completely dry with no water, and the bottom of the tub being once solid piece. Then after Tom slides down the rope and dashes to look in for a closer look, it is show that there are now some small water puddles in the tub, and the bottom is made of many boards.
Continuity mistake: When Jack sees Mr. Bigley's car drive up, the car pulls in from the left of the gate and is facing right, coming to a stop like that. Then after Jack races to go get his mom, it comes back to Mr. Bigley getting out of his car and suddenly it is facing the other direction, facing left of the gate.
Continuity mistake: After being launched from the rollercoaster, Tom and Jerry land in the cow's feeding troth and begin skidding at high speed towards the Shoe House. The view from Tom and Jerry's shoulders on the approach shows bars in the windows of the house. It cuts to a side view of the house as the duo are about to slam into it and suddenly the bars vanish. The age damage on the house also vanishes between shots.
Continuity mistake: The Pumpkin house comes to a stop once it smashes into the mouth of the mechanical Moby Dick. The door of the house is facing the extreme away from Moby Dick, out away from it. The camera cuts to a close up of Jerry exiting the house, very dizzy, and suddenly the house is turned to be facing away from Moby Dick diagonally. You can tell by the position of the teeth visible.The doorknob also appears between shots.
Continuity mistake: After seeing Mr. Bigley's car pull up, Jack takes off to inform his mom thinking they have a customer. As he is running up to their trailer, the window to the right of the door is shown to have the top part above the door. The as the camera cuts to a closer view as Jack begins trying to open the door, the window is below the level of the top of the door.
Continuity mistake: As Jack reaches the fairgrounds looking for the circus, he sees the train about to leave. The far shot shows some workers by the ramp of one of the train cars, with an elephant partly sticking out of the side, but nobody is moving at all. It cuts to a closer view and suddenly, instantly they are moving the elephant inside.
Continuity mistake: After Tom flattens Jerry with the sign, Jerry runs on all fours backwards while flat and slides under the door of the Peter Peter Pumpkin Eater house. The close up of this shows that he does not pass by anything on the way and the ground is stone completely. The camera cuts to a wider shot as Tom dashes up and suddenly there is the statue of Peter with a sign that was not there when Jerry passed. Also grass appears in the area, and the stone ground becomes dirt.
Continuity mistake: Once Tom rocks Jerry's world by sounding the bells of the grandfather clock with him inside it, Jerry rockets out and Tom snags him with a green fishing net. But Jerry's super mousy strength begins pulling Tom along, causing him to smack into a trash can and begin bringing it with him. It cuts to a close up of Tom with the trashcan as he's being drug, and suddenly a hotdog appears in the trashcan, and the straw in the drink turns around instantly.
Continuity mistake: Tom pops out from behind the grandfather clock that Jerry has made his home in, he looks in a book and then grins at an idea. As he looks up, the pendulum of the clock is swinging to the left, and not quite half way there yet. The shot cuts to show the top of the clock and you can still see the top of the stick of the pendulum, and suddenly it is swinging to the right.
Character mistake: As the movie begins, a book opens up with various fairy tell things written in it. The name Cinderella is misspelled "Cincerella" on the second page, but is spelled correctly on the first page. It is also apparent that the second page just has some of the same text as on the first page.
Continuity mistake: After Storybook Town is back up and running, Tom and Jerry are shown giving a musical performance on stage with Jerry dancing on a stool as Tom plays the fiddle. Tom hits Jerry off the stool with the bow and Jerry flops down face first onto the hard wood boards of the stage. The first shot shows him land right on the line between two boards. It cuts to a close up of Jerry and he is suddenly almost exactly in the middle of a board. Then it cuts back again and now he is off to one side of the board, but not quite on the line.
Continuity mistake: After Jack presents his mother with the deed of the mortgage paid off for Storybook Town, she hugs him and begins walking him back towards the gate. In the close up, the sidewalk is shown to be elevated about 2 inches higher than the street. When it cuts back to show them walking towards the gate, the sidewalk is suddenly flush with the street.