The music
Just saw this gem of a movie last night and thought it was fantastic. The performances were all marvelous, especially Edward Arnold. His breakdown when he realizes that his liquor is gone is downright harrowing.
Also it was a treat to see a "young" Leo G Carrol and Akim Tamiroff!
But the real treat was the fabulous music by Arthur Freed. All of the songs and performances were charming, including the amazing number performed by the trio in the nightclub. It was obvious they were pros and really playing their instruments. The fellow on guitar was especially great. I never knew that kind of guitar playing was even around in the early 30s.