This film was shot in Standard Academy (1.33:1), although it was designed to be matted to a ratio of 1.75 for widescreen-equipped theaters. When re-released in the mid-1990s, the entire 1.33 frame was matted within a 1.85 (flat) viewing area, so that the entire animated frame could be seen, since most modern theaters no longer have the equipment to run films in Academy ratio.
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