When Arthur raises at the poker game, the front shot shows him with chips in his left hand and cards and a cigar in his right, while the next shot from behind shows the cards in his left hand and the chips and cigar in his right.
The marquee of the Monica Theatre is shown where two of the couples attend a matinee of a French film. The story takes place in San Francisco, but the Monica is located on Santa Monica Blvd. in West Hollywood.