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: After Tramp gets his breakfast bone from Tony's Restaurant, he carries it behind a wooden fence and starts chewing. Pretty soon a horse drawn dog pound wagon rolls by, and a worker gets out to nail an impound notice four boards away from him. But when Tramp walks over to read what the notice has to say, it's now nailed six boards from where he was just a moment ago. (00:16:40)
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.
Other mistake: During Lady's first night home, there's a shot of the family's clock: the number seven is painted as a six.
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: The first time we meet Tramp 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 the puppies are playing with Jock, the drumsticks and toy soldier disappear and reappear randomly between shots.
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: 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.
