"Chop Suey"; August 24th, 1930; produced by Paul Terry and directed by Frank Moser for Terrytoons Studios. A wonderful example of the openly racist history of cartoons before the moral uprising of the '50s and '60s in America when such caricatures were deemed too offensive for contemporary audiences.

Care of OpiumMuseum:
"This cartoon is supposed to be taking place in San Francisco's Chinatown as indicated by the famous pagoda roofs and view of the bay and Alcatraz Island seen at 4:33. Many Chinese laundries served as fronts for opium dens, which is the inspiration behind the scene at 00:50 which depicts two rats receiving an opium pipe from the cat in the laundry and then floating away on the clouds." (less info)