Connor mentions that "The Jazz Singer" was running all night long. In fact, it opened as a roadshow engagement--two shows a day. The Vitaphone discs were only playable for a maximum amount of 20, and would have needed almost constant replacement if it were running continuously.
This is another film that perpetuates the myth that studios abandoned silents almost immediately after "The Jazz Singer" opened. In fact, it WAS regarded as a fluke. It would be many months before studios realized that talkies weren't going away, and it wasn't until 1930 that production of silents finally ceased, save an occasional outlier like "City Lights" and "Tabu.
The time at the beginning of the movie is stated as 1913. However, the Broadway play in which Alice Faye performs, did not open until 1916.
Alice Faye, in her role in the Broadway play of 1913, wears a blouse and skirt of the type that women would wear in 1939.