After Fredric March (as Jeremy Wayne) reads the wedding invitation, crumples it and throws it down, he then drinks and empties his glass twice without refilling it.
The day of the week printed on the wedding invitation is Wednesday, but the date printed after it was actually a Sunday.
When Fredric March and Norma Shearer draw back after a farewell kiss in the garden, a thick, glistening strand of saliva can easily be seen between them.
The bulk of the story takes place during the WWI era, 1915-1919, but all of Norma Shearer's clothes, hats, and hairstyles are strictly in the 1932 mode, the year the film was made, a typical practice of the era.
The flashback to the party the night before John and Moonyeen's wedding includes an important scene at the gate involving only Moonyeen and Jeremy. The framing device of the flashback is John telling Kathleen what happened to Moonyeen. However, since Moonyeen died and Jeremy disappeared forever the next day, there was no way for John to know what happened in the gate scene that he apparently relates to Kathleen.