Continuity mistake: When Tramp killed the rat in the baby's room, Lady's chain disappears as Tramp is walking back to the baby bed.
Continuity mistake: When the Siamese cats jump onto the grand piano a vase tips over, spilling roses across the bench and floor. Once the shot changes several roses appear on the keys, and those which have hit the floor are gone.
Continuity mistake: When Jim Dear is taking the family photo, the distance between the table and the cushion on the left and where Lady and the puppies stand suddenly decreases between instant cuts. Note the decorations on the rug.
Continuity mistake: When the puppies are playing with Jock, the drumsticks and toy soldier disappear and reappear randomly between shots.
Continuity mistake: When the Dears are in the rocking chairs by the fireplace, Lady is lying on a pink rug, when the shot changes the rug has vanished.
Continuity mistake: When Lady shows Jock her new collar, check the lower rows of bricks behind: They swap between being a set of two irregular rows of horizontal and perpendicular bricks, to two rows shaped like a letter "i."
Continuity mistake: When Lady and Tramp arrive where the crocodile is there is a green bench next to the bars, protruding slightly. When the shot changes the bench is further to the left in a much higher position.
Continuity mistake: When Tramp and Lady arrive at the crocodile cage and ask him to remove the muzzle the green bench disappears.
Continuity mistake: The size and position of the hole in the newspaper changes between shots. Note its distance to the upper part of the paper.
Continuity mistake: When Lady wakes up on the family's bed there's a close-up of the night table and clock. In the following shot the stuff on the table is completely different.
Continuity mistake: When Tramp chases the rat they knock down a table. A shot later the table is standing back again.
Continuity mistake: When the movie ends and Jim opens the door, the pattern of the stained glass windows on the sides are completely different to that in the final front shot of the house.
Continuity mistake: Throughout the movie, the number and style of the paintings and frames on the wall by the stairs is not continuous.
Continuity mistake: When the Darlings arrive home the dog pound carriage's lights are out. A shot later they are lit.
Continuity mistake: From left to right, in the room where Tramp chases the rat there's a chest, a couch, a huge window with fallen curtains on a table. When the rat is killed the window disappears, and thus the curtains over the table. After aunt Sarah locks Tramp, the window reappears and the curtains are back on the table.
Continuity mistake: After Tramp brings Lady a bone, he drops it on the floor and the bone suddenly disappears. Later, when Lady recounts Tramp's girlfriends not only does the bone reappear, but a bowl magically appears on the ground.
Continuity mistake: During the spaghetti dinner scene, the size and text of the sign to the right of the door keeps changing in every single shot.
Continuity mistake: When Tramp arrives at Tony's restaurant, on top of the big crate with vegetables there is a smaller box. Depending on the shot, the box is solid wood, or has wooden planks with vegetables coming out in between them.
Continuity mistake: When Tramp arrives at Tony's, there's a crate with four rows of vegetables. A shot later it has three rows and, a shot later, it changes back to four.
Continuity mistake: Tony kneels by some crates and greets Lady. From the opposite angle he disappears.
