At the Tea Party While Irene is talking to Charlie Van Rumple, in the background you see Godfrey serving Cornelia with a tray and she takes an item in each hand. A few seconds later the scene shifts to Cornelia, and Godfrey again serves her and she takes the two items again.
Godfrey is placing roses in a vase while ignoring Irene. In one shot, he has already placed five stems in the vase. The camera cuts away to the rest of the cast but when Godfrey is seen again, there is only one rose in the vase.
In the living room scene just after the PARK AVENUE CHATTER column that appears, Cornelia's magazine changes. At first, Cornelia picks up a magazine having a dark stripe along the top and bottom of the front cover, then the magazine has a lighter front cover and a woman (resembling her) in an ad on the back cover. As Cornelia moves over to the couch, the magazine changes back to the original one; further, it reveals a star shape on the front cover and a non-portrait on the back cover.
When Irene first goes into Godfrey's room the door opens to the right, in the direction of the kitchen - revealing Molly standing in the background. In the next shot the door is open on the left, in the direction of the bedroom.
When Godfrey is washing dishes because Molly "has a cold" and Irene joins him in wiping, he only washes supper plates. For one meal, there would not be so many plates used; other items should have been washed after about nine plates at most, which would include the servants' used plates.