 Techniques used on this movie which had not been used extensively in  other animated features included split exposures to create shadows  and translucency, diffusion in conjunction with split exposures to  create reflections, color Xerography for the creation of cels and  painstaking color orchestration. Newer techniques included the use  of video animation for testing and backlight. The use of multiple  exposure techniques was probably the best indication of the time and  effort taken with the film.