Disney's 101 Dalmatians used xerography to create its distinctive sketchy visual style.
The film, released in 1961, was the first Disney animated feature to use the xerographic process extensively. Xerography transferred artists' pencil drawings directly onto animation cels, reducing the need for inkers to trace every line by hand.
The process saved time and production costs, which was important for a film containing hundreds of spotted dogs. It also preserved the rough, energetic quality of the original drawings instead of producing uniformly smooth outlines. The resulting appearance became one of the movie's most recognizable artistic features.
Xerography was not the same as computer animation, which was not used to make the original feature. The technique influenced later Disney productions, although the studio eventually adopted digital production methods for newer animated films.