Lady and the Tramp (1955)

Continuity mistake: When Jock and Trusty are telling Lady that Darling is having a baby, Lady's collar changes from blue to brown and back to blue when Tramp comes close to her.

Kimberly Klaus

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: Although the spaghetti-eating sequence is now the best known scene, Walt Disney originally did not want it in the film as he thought it would not be romantic and that two dogs eating spaghetti would look ridiculous. Animator Frank Thomas was against Walt's decision and animated the entire scene himself without any lay-outs. Walt was so impressed with Thomas's work he decided to keep the scene in.