Revealing mistake: When Matthew is sliding backwards because his shoes are icy, just before he falls you can see the board he was on to allow him to move backwards. (00:02:00)
Continuity mistake: When Catherine sits down at the break room table Beth is seen walking out of the door twice.
Visible crew/equipment: When Dave is walking out of the office to the elevator to talk to Joe the studio lights can be seen. (00:05:45)