Continuity mistake: When Keen enters Red's Bethesda apartment, the camera pans over pictures on the mantel. Directly left of the picture of a little girl/man on a swing, is a picture of a woman holding hands with 2 children (looks like 1980's, adult woman looks like Keen.) When Keen reaches out to pickup/view the swing picture, the woman/children picture is no longer there and a really old family photo is in its place. (00:21:25)
Continuity mistake: When Agent Keen first finds Tom's blue key in the base of the lamp she places it on the whiteboard in her op centre, however when she realises that she has to play along with Tom, she is seen putting it back when it was in the base of the lamp. The next time she takes it, it is back on the whiteboard again.