Lady and the Tramp (1955)

Continuity mistake: When Lady is running away from the pet shop she is chased by the angry mutts. The middle dog's inner ear color is solid green yet in the next scene is pink. (2006 edition).

Lady: ...But when she put that horrible muzzle on me.
Tramp: Say no more, I get the whole picture. Aunts, cats, muzzles... Well, that what comes of tying yourself down to one family.
Lady: Haven't you a family?
Tramp: One for every day of the week. The point is, none of them have me.

Trivia: Peggy Lee (famous for the song Fever) not only wrote most of the songs in the film, but also voiced the characters Peg the dog, Darling and the two siamese cats.