Browsing some more through the Daily News archives just now, I found a picture that reminded me of the discussion of the "staged/not staged" photo at Ciro's:
UCLA Special Collections
The caption was: "Overhead view of crowded auditorium during Jitterbug Dance contest Los Angeles, Calif., 1939."
With all that motion artifact, the scene must have been really alive. It looks like there were multiple simultaneous exhibitions, as groups of people are looking in different directions at different dancers. Does anyone know how these contests worked? In the center of the photo, is that a loudspeaker suspended above the (amazingly well-dressed) crowd?
A search of Newspapers.com revealed there were at least a dozen jitterbug contests big enough to be mentioned in the Times at various places all over Los Angeles, Venice, and Long Beach in 1939.
Where was this venue? The only legible sign is a banner for Central Chevrolet, which was on E 7th, downtown.
Looking more closely at the decorative motifs of the chandelier (center top), a bell rang:
But, interior views of the Shrine Auditorium don't match this place at all. Google Image Search came to the rescue:
Google
...which is the Shrine Expo Hall, not the main auditorium itself.
So this particular jitterbug contest was probably the one in this Times article:
LAT 4/15/39
Mary Pickford's audition was in the Chandler Building at 5364 Wilshire which I think has been mentioned on this thread before. I'm almost certain the camera-tavern next door has been seen here before:
GSV
Mary Pickford was pushing 50 and had retired as an actress (although not as a producer). It seems odd that she would be involved in a dance craze among people half her age.