Reminds me of the "Hollywood effect."
Fanled movie director Cecil DeMille was a lifelong conservative and Republican activist.
In 1944, he was the master of ceremonies at the massive rally organized by David O. Selznick in the Los Angeles Coliseum in support of the Dewey-Bricker ticket as well as Governor Earl Warren of California, who would become Dewey's running mate in 1948 and later the Chief Justice of the United States.
The gathering drew 93,000, with short speeches by conservatives Hedda Hopper and Walt Disney. Among those in attendance were conservatives Ann Sothern, Ginger Rogers, Randolph Scott, Adolphe Menjou, Gary Cooper, and Walter Pidgeon.
Though the rally drew a good response, most Hollywood celebrities who took a public position sided with the Roosevelt-Truman ticket.(hat tip WIKI)