In "Uptown Saturday Night" (Warner Bros. / First Artists, 1974) we get Main St. Los Angeles subbing for Chicago. Sidney Poitier and Bill Cosby are crossing the street with the Burbank Theatre, 548 S. Main St., behind them. At the time of the filming, the theatre was closed and awaiting demolition.
Another shot from the film. We're looking south toward 6th St. The Santa Fe building and the Pacific Electric Building that we see a bit of at 6th and Main are still around, both now loft conversions.
See our page on the Burbank Theatre for more photos and a history of the building, constructed in 1893.
A chase scene gives us view north on Main from 4th and a look at the Follies Theatre, 337 N. Main St. The theatre had opened in 1904 as the Belasco. Visit our Follies Theatre page for more about the theatre. Like the Burbank, it came down in 1974.
Here we're looking west toward the Regent Theatre, 448 S. Main St.
Another shot a moment later. See the pages about the Regent Theatre on the Los Angeles Theatres site for a history of the venue along with photos inside and out.
On IMDb: "Uptown Saturday Night"