1939, surprisingly.
http://users.wfu.edu/woodaljn/ant260/hollywood.htm https://archive.ph/P9SKl
Hollywood as the prowling ground of the Jew and his helpmate, the sexual woman with her phallic snake. This 1939 handbill, widely distributed on the West Coast by the "Anti-Communist Federation," was reproduced in the March 6, 1939, issue of Life. The handbill's text is an Aryan call to arms:
"Christian Vigilantes Arise! Buy gentile, employ gentile, vote gentile. Boycott the Movies! Hollywood is the Sodom and Gomorrah where International Jewry controls vice, dope, gambling."
Hollywood and Anti-Semitism: A Cultural History up to World War II (review) https://muse.jhu.edu/article/53715/summary https://archive.ph/43RYp
This image was included in the RedPill.pdf (3rd edition) in chapter 11 "jews today" that covers media and entertainment jewry (historic and current).
RedPill - 3rd Edition
I was just going through some of the images extracted from it and saw this seemed to have not been posted on poal before.
(post is archived)