When Hal hides in Lola's closet, the first shot shows the back of the door with a hook, while the next shows a dress hanging on the hook.
During the first band song at the masquerade party, a shot shows three people on a couch and a woman in a plain dress seated left of screen. At the start of the second band song, a different view of the couch shows the same three people sitting on it, but there is now a woman in a patterned dress and wearing a mask on the left. Later shots alternate between the woman in the plain dress and the woman in the patterned dress.
When Bill Smith sits in his chair at home to have a drink, there are three glasses on the table next to the chair. Later Mary comes over and Bill pours her a drink which takes back to her seat. The next seat shows three glasses still on the table. The number and position of the glasses continually changes between shots set in this room.