Continuity: When the butler takes the mother and kittens to be abandoned in the countryside he is on a motorcycle and sidecar combination. During the trip the sidecar changes from one side of the bike to the other and back again. Also, when the sidecar separates from the motorcycle when the dogs are chasing Edgar, the wheel on the sidecar switches sides regularly as well.

Continuity: When the male kitten plays the piano for his singing sister the painting kitten starts to join him. His paws are covered in paint. During a brief scene change you can see that the colour of the paint on his left paw has changed. Also he only has two colours of paint on him, yet minutes later the keyboard is covered in all colours of the rainbow

Continuity: When the cats get catnapped, Berlios's ribbon becomes undone as shown by the uneven length of the two ends. When he walks out of the stream, his ribbon is miraculously neat and tidy.

Continuity: When the mouse gets in the light in the back of the motor cycle, there are little bits of glass sticking in from where a full glass cover had once been. But when they show the mouse bumping up and down there is no glass.

Other: When Edgar goes to retrieve his hat and umbrella, he uses a fishing pole to snag the hat from Napoleon's head. You see him reeling in the line when it should be reeling out (counter-clockwise vs. clockwise)-the next shot shows the line going down. This happens twice.

Continuity: When the Dutchess and kittens meet O'Malley's gang, the floor collapses. Isn't it funny how fast the floor was rebuilt just in time for the cats to go to bed?

Other: When Madame gets off the carriage, Frou-Frou winnies to get her attention. Madame then proceeds to feed her. Frou-Frou eats from her hand. However, if you look closely at Madame's hand, it is empty.

Continuity: When the cats jump under the train track, the train goes by. Each time it shows them, they are in a different pose. And when they show the cats again, they are back on the track. They couldn't get up there so fast.

Continuity: When Edgar is escorting George up the stairs, George's cane gets caught in Edgar's legs. However, in the very next shot, the cane is held high up in the air by George, when it should be still caught up in Edgar's legs.

Factual error: When Edgar the Butler directs the Old Solicitor upstairs they have a bit of a struggle with the steps. Before this you saw the Solicitor arriving in his car and this gave you an impression how high the first floor of the building of the Old Spinster was. Judging by the amount of steps on the stairs the pair would have ended up on the roof.

Continuity: When O'Malley jumps on to the milk van, it screeches to a halt. The milkman gets out of the van to manually crank start the van. However, in the previous shot, there is a clear view of the front of the van, and there is no crank shaft present.

Continuity: When Edgard takes the cats to the countryside he looses his shoes in the struggle with the dogs. When he finally leaves the scene his shoes are back again.

Continuity: Edgar gets the seat bitten out of his trousers at least three times when being pursued by the dogs - it miraculously repairs itself.

Continuity: The kittens fight and a candle falls on the floor. The candle is part of the moving parts against the fixed background (decor). In the following shot the candle has become part of the background and thus changes colour and shape. In the next shot when the cats walk away from the area where the candle fell, the candle has disappeared.

Continuity: The painting kitten (in the beginning of the film) steps on a tube of blue paint and squirts a bit that ends up on the floor. Minutes later the colour of the blob on the floor has changed to red and a few moments later the paintblob on the floor has vanished. During the 'paint' scene several tubes near the palette also change colour and position.

Factual error: In the scene where the three kittens are playing train on the train bridge, Barliose is standing in front, then Toulouse then Marie. After Barliose says, 'Marie's the caboose' you look at Marie's reaction and Barlioses is painted in front on her instead of Toulouse.

Continuity: When O'Malley arrives with his musical number, as he strides around Duchess before he 'curls' his fingers, her collar changes color for a split second quite visibly during the same shot.

Continuity: When the lawyer is getting out of his car, he removes his driving gloves and holds them in his hand together with his briefcase. However, when he gets out of the car, the gloves are missing.

Continuity: There is a name plate above the cat door that appears and disappears.

Continuity: In one scene O'Malley's tail tip changes from white to orange and to white again.