Rather than making animated backgrounds using drawings the Fleischers pioneered the idea of using either models or cutouts mounted on a turntable. The table was slowly spun and photographed. The foreground animation was then placed in front of the photographed backgrounds. This not only saved hundred of hours of drawing but also lent a 3D effect to the background. It was used here and in numerous "Popeye" cartoons.
Probably the first example on film of the "moonwalk' dance move made famous much later by Michael Jackson.