This is part of an episode of the Polish Film Chronicle from 1946. The clip spliced together footage from two different episodes of Swedish newsreel from December of 1945:
www.filmarkivet.se/movies/veckorevy-1945-12-03/
www.filmarkivet.se/movies/veckorevy-1945-12-26/
First part shows workers at Electrolux factory exercising. In the second part we see dancers at the Nalen club in Stockholm with Seymour Österwall's Orchestra in the background.
The narrator is probably alluding to the Swedish gymnastics system: en.wikipedia.org/wiki/Battle_of_the_Systems
The second song we hear is "May-Fair Boogie" by a Danish group 'Harlem Kiddies'. • May-Fair Boogie
Voice-over was done by popular actor Władysław Hańcza.
Source: 35mm.online/en/vod/chronicles/polish-film-chronicle-46-05
#prl #newsreel #jazz #1940s #swing #jitterbug #bigband #electrolux #boogiewoogie