The girl standing by the piano in the reform school twice turns away to leave.
Between the park and Vivian's apartment, Mike Loftus's tie changes from a polka dot to a solid color.
When Mary is smoking a cigarette in the restaurant with Vivian and Ruth, she is holding the cigarette in her right hand as the waitress approaches the table. But immediately on the following cut as the waitress leaves, the cigarette is now in her left hand. Then the cigarette keeps going back and forth between the right and left hand with each successive cut.
When Vivian fakes being asleep, she has both her hands hanging down to her side below her head. But on the next shot when Robert sees her in the mirror, her position changes and she now has her head resting on one of her hands.
Mary's purse disappears from her hand while she's sitting on Vivian's bed.
The PS 62 "School Messenger" paper shown in the 1921 montage zooms in to highlight the "School Topic" about Prof. Irving Finklestein rehearsing the orchestra "for its debut at COMMMENCEMENT." While this item is completely logical and sets up the next scene, the other "stories" in the paper are just random lines of text. Under "BANQUET PALANNED", the story starts, "Mrs. Armstrong ended her life in is said to be at a high pitch as the land avenue ..." and the first item under "School Topics" begins, "A small crowd, said to be made several minutes. She alternately body, self-appointed head of her and horror...". Finally, under "Varied Events on Social Program" the text states, "This year, however, officials of Monson, will drive an ancient stage coach through the house. She died instantly send heartiest greetings and wishers.." There are similar occurrences, though not as noticeable, in other years' newspaper montages.
Davis' character is spelled Ruth Westcott in the credits but in the newspaper account of the seaside vacation she is Ruth Wescott.
A string can be seen pulling Bobby Kirkwood's bathtub sailboat.
Broken glass is seen ahead of Dvorak when she bursts through the window but later there is only broken glass following her as she continues to fall.
In a montage, the year 1921 shows a sheet music cover of "The Sheik of Araby", mentioning it was sung by Eddie Cantor in the play "Make it Snappy". The play didn't have its run until April to July of 1922.
The direction of shadows (to the right) indicate the beach scene was filmed on the west coast, not the east coast where the movie is set.
Reflection of the boom microphone in the glass door of a shop that Mary exits before meeting Vivian on the street.
At their first lunch, Mary notes Vivian's limo outside "with a Russian grand duke for a chauffeur". However, when the three go to split up outside the restaurant, Vivian's driver is an African-American.