The Mice Will Play (1938)
The mice are on the loose after hours in a doctor's office, playing with the various pieces of medical apparatus. Susie Mouse is caged for research until her lover Johnnie frees her. A mouse orchestra plays a swinging wedding song. But throughout, a cat is stalking... jazz, biology, cat, mouse, chemistry, conductor, man woman relationship, breaking the fourth wall, laboratory, singing, cat and mouse, cartoon cat, animals, cartoon mouse, damsel in distress, big band, short film, music, merrie melodies