Continuity: When Craig first discovers the portal door his crouching position changes slightly between the camera shot inside the tunnel and that from the office, and again when he closes the office door and goes back to the portal door.

Continuity: When Craig and Maxine are speaking with their first client (the "Fatman"), Maxine has a clipboard with paper on top on the desk in front of her. When the shot changes, the blue clipboard is now at the top, neither Maxine nor Craig removed the paper.

Continuity: Towards the end after Malkovich gets off the phone with Lester, who threatens him, he has hair over his eyes. In the shot through his eyes however there is no hair seen. When it shows his face again there is still hair.

Continuity: Before JM goes through his own portal, he puts on his baseball cap with the strap in the back open. Next he is seen crawling and the strap is closed.

Revealing: When Lotte and Maxine are hugging by the side of the New Jersey Turnpike at the end, the camera pans around them and you can see shadows of the cover and poles holding it to protect them from the rain.Also at one point a large amount of water falls down which obviously pours off the cover.

Continuity: Before, during and shortly after his dance JM has a very visible lipstick mark on his cheek. At the end of the scene the mark disappears, then comes back, and then goes again.

Revealing: At the end when Charlie Sheen is balding you see the edge of the silicone wig in the middle of his forehead.