Continuity mistake: The side of Janet's desk phone is situated roughly parallel to the side of the desk's edge, opposite to her side, but an individual shot of the phone shows it closer to the adjacent side (and her), and angled towards the corner of the desk. (00:23:14)
Continuity mistake: The angle/position of Katie's fork near the corner of the table varies, even though she has her hands on her lap or folded on the opposite side of her plate. (00:03:04 - 00:04:30)