Continuity mistake: After the crocodile scene, Lady and Trump jump away and land on a narrow street inches away from the hyena cage. After the hyena stops laughing, the place is completely different: Wide and with a fountain in the middle. Lady is sitting still so they couldn't have gone somewhere else in between shots.
Continuity mistake: When Lady watches the baby asleep in the cradle she stays beneath a table. In the following shot she disappears.
Continuity mistake: The first time we meet Tramps he is brown with a light brown belly. When he has breakfast at Tony's he is tan coloured. After Lady tells about the baby he becomes gray coloured. When the movie ends he is dark grey coloured.
Continuity mistake: When Lady enters the bedroom where the baby is put asleep, the wall in the back is an absolute chaos: A wooden chest appears/ disappears randomly; the things on the chest magically disappear only to become a blanket in the final shot; the mirror becomes a painting, and, last but not least, the wall has either a smooth paint or a wallpaper with flower motifs.
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: 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: Throughout the movie, the number and style of the paintings and frames on the wall by the stairs is not continuous.
Deliberate mistake: When the Darlings discover the dead rat, they raise the curtain and cry out loud, but the rat is nowhere to be seen. Given Disney's long time history of refusals to show dead bodies or blood, it's highly possible that this was a deliberate mistake, but really awkward indeed.
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.
Continuity mistake: When Lady and Tramp arrive at Tony's, she stands behind some crates and the place is fully lit. A shot later, the place is in the shadows.
