When Abby goes to Buddy's workplace to discuss looking at places for his company to move. When they are sitting down, Abby's collars of her shirt are out of her blazer, but when they are leaving, the camera is on Abby and Buddy walking, and one of Abby's collar's is tucked into her blazer. Gweneth Paltrow even mentions it in the DVD special where she and Ben Affleck and the director are talking about certain scenes.