When Blackie picks up a magazine from the couch after Eleanor leaves him, it is a closeup of a Woman's Home Companion, November 1925, from a leopard skin upholstered couch. In the wide shot, he is holding a Vogue magazine, and the couch is plainly upholstered, not leopard skin.
Jim and Blackie meet before the boxing match. Jim lights Blackie's cigarette, then puts a cigarette in his own mouth, and then Jim's cigarette disappears in the next shot.
When having breakfast in bed, the phone on the nightstand rings, and Eleanor moves to answer it. It the next shot, her hands are not in the same position, and she has to reach out again to answer the phone.
When Snow enters the men's room at Madison Square Garden, he begins to close the door. In the next shot, showing him reflected in the mirrors above the basin, he once again is walking through the door.
At 30 minutes in, Jim Wade and Eleanor Packer arrive at Eleanor and Blackie's apartment where Eleanor offers him some Manhattan Clam Chowder. This is after Eleanor's first night on the town in NYC with Jim, a very old and dear friend of her current main event, Blackie, a gambling bad-boy. Jim declines the offer of chowder as it is 5AM.
He then passes on a good night kiss from Eleanor and gracefully leaves.
Eleanor is then seen wearing all the same clothes that she came in the door with Jim in and she's with Blackie, who's sitting lazily on the couch. At 33 minutes in, they have a short discussion about the evening when Eleanor walks past their mantle that contains a a wind-up clock that displays the current time as 4:10AM.
There is a scene depicting a rabble rousing-speech by Lev Trotskiy, which descends into a riot, circa 1904. In reality, Trotsky didn't visit the United States until January 13 1917 for a short while before returning to Russia. In 1904, he was active in the events leading up to the 1905 Russian Revolution.
In the closeup of the newspaper announcing Jim as the new D.A., in the upper right corner, the newspaper is being sold for "Five Cens".
In the cheering New York City crowds on Jim Wade's election night, supposedly in November 1925, theatre marquees are promoting 1933 films, including MGM's Dinner at Eight (1933) and Bombshell (1933) with Michael Strogoff (1910).
In the 1920,1923, 1925, and 1930 sequences, the women's fashions and hairstyles all are strictly from 1934.