Michaels of Los Feliz.

In 1942, a chicken restaurant named Willard's opened in Los Feliz. It was later purchased by Laughlin Park-resident Cecil B. DeMille, who converted it to a Brown Derby, ultimately the last one in operation. During that time its interior served as the interior of Mildred Pierce's joint in the film of the same name.  In 1960 it became Michaels of Los Feliz. and in 1992, it became a nightclub, The Derby.

http://www.amoeba.com/blog/2010/11/eric-s-blog/los-feliz-the-mideast-side-s-pill-hill-.html