In the film Hoppla! made by Wolfgang Kolb, two choreographies by Anne Teresa De Keersmaeker are brought together and performed to the music of the Hungarian composer Bla Bartk: Microkosmos, seven short works for two pianos and Quatuor nr. 4, Bartks fourth string quartet. The reading room of the University of Ghent library, designed by the famous architect Henry van de Velde (1863-1957), served as the location.