This film short is called "Lambeth Walk - Nazi Style" and was made by
Charles A. Ridley in 1941. He re-edited existing footage of Hitler and
Nazi soldiers (taken from the propaganda film "Triumph of the Will") to
make it appear they were marching and dancing to "The Lambeth Walk". He
used the music because members of the Nazi party had called the tune
"Jewish mischief and animalistic hopping". The re-edit was distributed
uncredited to newsreel companies in the US and UK. Made 60+ years before
YouTube, it is regarded as one of the first political remix videos.