On the night of the opening of Bill's first play, there is a long shot of him waiting at the edge of the theater entrance, then turning to walk to his left. The next shot is a close-up of him again standing still, then turning and walking again. This is something the film editor could have easily avoided by snipping the end of the long shot before Bill moves.
Near the end of the film, Bob walks into Bill's hotel room with a folded newspaper and places it on top of another folded newspaper next to the telephone. The paper Bob was carrying was clearly folded with the front page showing. Bob then leaves, and less than a minute later Bill goes to make a phone call and picks up the folded paper on top, but instead of a front page, it's an internal page showing the column with gossip about Bill and Carolyn.