In early script versions, Tramp was first called Homer, then Rags and Bozo. A 1940 script introduced the twin Siamese cats. Eventually known as Si and Am, they were then named Nip and Tuck.
Peggy Lee helped promote the film on the Disney TV series, explaining her work with the score and singing a few numbers.
HiringPeggy Leearguably was the first instance of a superstar voice being used for an animated film.
In the 1999 video release, some scenes had pieces of dialogue missing that had been part of the original theatrical release. This was believed to be caused by the studio restoration process that incorporated both US and international formats of the film, which inadvertently created a hybrid version. Disney often produces different international and foreign versions of their films to make the foreign dialogue fit.
The 1962 re-release of this film was shown on a double bill with the first release of Disney’sAlmost Angels.
The first feature-length animated movie to be made in widescreen (2.55:1). Made simultaneously in both a widescreen CinemaScope version and a standard Academy ratio version. It’s also the widest film the company has ever created.
Before animating the fight between Tramp and the rat, animator Wolfgang Reitherman kept rats in a cage next to his desk to study their actions.
Peggy Lee later sued Disney for breach of contract claiming that she still retained rights to the transcripts. She was awarded $2.3m, but not without a lengthy legal battle with the studio which was finally settled in 1991.