When Bob talks about the Best Man "having to do a gall bladder operation" as the wedding is called off, that can't be---because Jerry asked Bernie Tupperman to be his best man---he's a urologist and would not be taking out a gall bladder.
(at 6:28) As Cynthia Fremont is leaving Bob's office, a crew member is visible in front of the desk at the right edge of the screen. His shadow even falls on Bob's desk and tan briefcase.