The original version featured the Wolf dressed as a Jewish peddler (complete with oversized false nose) to gain entry to the pigs' house. A second theatrical release, not long afterward, used new animation and dialogue in this scene. This second theatrical version is the one used in the DVD release.
This was the first Disney cartoon to be fully conceived on storyboards. Previously, simple sketches were drawn on a page giving a broad overview of each scene, with descriptions of the individual actions and gags typed on a separate page. Storyboards in the modern sense (drawings pinned on a bulletin board detailing every action on a film) were invented at the Disney Studio in the early 1930s.