The Hollywood Filmograph made the somewhat dubious claim that this was the first film in history to require armed guards. A guard was apparently kept on-hand during filming to make sure the expensive furs used in the film were not stolen.
Bertha Krasnof (Aline MacMahon) offers to sell a fur coat for the bargain price of $250. That would be about $5,540 in 2022 dollars.
According to an an article in Hollywood Filmograph Vol. 14 No. 2 (January 20, 1934, page 3), Warner Bros. rented "over $100,000 in ermines, sables and other valuable fur coats," to represent the "Fur Coats" of what was then the working title.
According to Warner Bros records, the film earned $126,000 domestically and $65,000 internationally.
Side streets is also known in the UK as A Woman in Her Thirties. The other working title for the film was Fur Coats, the name of the short story by Ann Garrick and Ethel Hill on which the movie is based.