Continuity: When Lotte and the chimpanzee get out of the cage there is a rather crumpled black-and-white blanket at the cage door. In the next shot the blanket is stretched out very neatly.

Continuity: While JM is crawling through the mud of his own portal you see for a split second that he is wearing gloves, which he didn't wear before.

Continuity: When JM talks to his friend Charlie about his strange experience, Charlie is playing with a Rubik's cube. The cube disappears from one moment to the next and is neither in his hands nor on the table next to him.

Continuity: In the scene after Maxine has made love with JM for the first time she is sitting on the floor in her office. The way she folds her legs changes depending on the camera angle.

Continuity: When Maxine is having dinner at the Schwartz's the wine in Lotte's glass increases although no one has poured it.

Continuity: When the first customer comes and asks about what exactly is going to happen he breaks into tears in his low self-esteem. Then Maxine asks for the money, and from one shot to the next he is sitting straight, holding a paper with both hands.

Visible crew/equipment: After the interview, when Craig and Dr. Lester are sitting on the windowsill, you see the shadow of the boom mike on the upper frame of the window.

Continuity: When Craig enters Maxine's office after he has been inside John Malkovich for the first time there's a coat hanging over the doorknob. It falls down as he enters, and he doesn't put it back. However, in the next shot, the coat is back hanging where it was.

Continuity: When Dr. Lester shares his fantasies with Craig while he's leaning on a filing cabinet, he's either talking with his left hand rested on his right arm (seen from the front) or with both hands held open (seen from behind). This changes several times.

Continuity: In the opening scene, when Craig plays with his puppet, the puppet hits a glass into a mirror. The mirror breaks and you see big pieces falling down, but in the next shot the glass is back in completely and just cracked.

Visible crew/equipment: When Catherine Keener is being chased by Cameron Diaz, crawling through the cat flap and into the bus, a hand pokes through the flap and helps her through.

Audio problem: Before Lotte chases Maxine through JM's subconscious she tries to shoot her in the office. Her movements while she aims and the sound of the shot are totally uncoordinated.

Continuity: When Craig makes JM dance for Maxine look at the big white lamp in the background. It changes between standing up and lying on the floor several times.

Continuity: When Lotte is in Dr. Lester's house she's having a cup of tea. When the camera angle changes the handle of the cup switches from left to right.

Continuity: When Maxine and JM make love the second time he realizes that someone else is inside him. When he confronts her she is sitting on a sofa, her blouse partly buttoned and one leg over a pillow. When the camera angle changes her blouse is totally unbuttoned and the pillow is on her lap.

Continuity: When Maxine calls the newspaper to submit the ad for JM Corp., she is sitting either normally or with one foot on the chair and her knee above the table alternately.

Continuity: When Craig is waiting at the New Jersey Turnpike roadside for Lotte, he is not wearing his glasses. When she falls down, from one shot to the next, he has them on again.

Continuity: When Craig comes to Maxine's office to tell her about the portal, she wants to leave. She picks up her purse with her right hand, but when the camera angle changes she's holding it in her left hand.

Factual error: Eight months after Craig has taken over JM and made him into a puppeteer JM's hair is much, much longer than it could have grown within that period.

Revealing: When Lotte chases Maxine through JM's subconscious she shoots at her while she escapes through a door. The bullet hole in the door frame appears a second later.