Montmartre Café, at 6753 Hollywood Blvd, half a block east of the Hollywood Hotel was tucked away on the second floor but is credited with sparking Hollywood nightlife. Opening in December 1922, the Montmartre was Hollywood’s first nightclub and quickly reached its zenith drawing both movie stars and movie fans during Prohibition. More than just a nightclub, though, it was also very popular a lunchtime venue where the newly arrived Louella Parsons wasn’t above eavesdropping on lunching celebrities.

Here is an article from the Los Angeles Sunday Times reporting that the Montmartre is nearing completion. I’ve never heard of there being a 24-hour buffet downstairs so I’m guess owner Eddie Bandstatter reconsidered that idea:

Eddie Brandstatter’s Cafe Montmartre menu – January 1, 1927:

The building is still there and largely intact – the exterior is at any rate. This image is from December 2020.