Continuity: When Kate turns to see all the numbers appear on the silver frame around the portal, although they are meant to be in the same position and handwriting as when they were drawn, much of the writing is not.

Continuity: As everyone leaves the Razorsphere room, Julia leaves her high heels on the floor. Later on in the movie we see as she climbs through a portal, she is holding her heels. In the next shot they vanish.

Continuity: When Sasha is trapped in the Razorsphere room, she yells “Kate, help,” and then between three shots her necklace changes from tucked under her purple shirt, to hanging out and back to tucked under.

Continuity: Kate writes the numbers on her left arm, with the pen she got from the doctor. In one shot though, the writing is on her right arm.

Plot hole: When the wall starts moving it moves across half the room in a matter of seconds. Then it cuts to them climbing out of the room while Kate spends at least 30 seconds trying to get Maguire loose. The wall should have reached her a long time before that.

Continuity: When Colonel Maguire lies down on the floor he prays and folds his hands. When it cuts to a wideshot you can see that he isn't folding his hands anymore.

Continuity: When Simon and Jerry are holding Colonel Maguire and Simon says "Look at his hands. Cigarette burns." First Maguire has his hand down, but when it cuts he is holding it up.

Visible crew/equipment: After solving the "60659" mystery, Kate opens a portal, revealing nothing but darkness outside it. It then cuts to a shot of the watch ticking, then back to Kate who is still kneeling down. In this shot you can clearly see down her blouse, and the long black mic wire and mic is very visible.

Visible crew/equipment: When Julia and Max are talking about Alex Trusk, Max then goes on to tell Julia that he designed the concept for the variable time-speed rooms. As he walks across the room, exclaiming "It was for a game! Now here we are!", watch the floor to the right of the screen, and you can see some black crew equipment laying there, which is nothing that belongs to Julia or Max.

Continuity: When Simon has Mrs. Paley tied to a ladder rung, prior to the slivers of light coming, Simon has two large sweat patches on his grey tee-shirt. Yet when he climbs out of the portal door, away from the slivers of light, the sweat patches have gone in a matter of seconds.

Continuity: Simon ties up Mrs. Paley to the ladder with his belt and threatens to kill her. Then slivers of light start to come out the wall, and he releases her hands from the belt, and chucks it to the floor. Between shots the belt moves and also disappears, only to reappear again.

Continuity: When Kate figures out the '60659' mystery, in the background you can see Sasha laying on the floor dead. Her hair is covering her mouth, but in a later shot, when Kate takes her necklace, her hair has moved to covering her eyes.

Continuity: When Simon first takes Kate down, he covers her mouth with his hand, then with the other hand, holds a knife. In one shot he holds the knife to the side of her face, but in the next closeup shot, he has the knife resting on his other hand, which is covering her mouth. Then in the next shot he is holding the knife to the side of her face again.

Continuity: In end the scene where Kate has just escaped the Hypercube, we see a big puddle of water in a huge warehouse - the technicians pull her towards the dry cement and a commanding officer. When she gets there, she starts talking to the commanding officer - notice in the shots that show Kate, there is no water in the background.

Continuity: In one scene Jerry draws a cube with his watch. There's then another shot, then in the next shot of Jerry, the cube drawn is totally different from what he drew a minute ago.

Revealing: As Sasha stands up, saying she feels something is wrong, to Kate (in the Razorsphere room), you can see smudges and scratches, revealing a protective glass screen between her and the camera.

Continuity: After Kate has told Jerry Sasha is blind he says "Oh, bummer, to be blind in this place," then he looks up. When it cuts, he looks up again.

Continuity: When Jerry scratches a '5' with his watch onto the wall, in a wide shot he starts to scratch the 5, then in the closeup of him scratching it onto the wall, much more of the 5 has been completed between shots.

Revealing: When Jeremy first climbs into the room with Kate and Sasha he climbs up through the door on the floor. This means he went through the hole in the roof of the room below Kate and Sasha are in. He has a quick look and then spins around and is not holding on to anything. To do this he would have to be stood on a platform of some kind as he does not fall back through the door and down to the floor of the room below.

Continuity: There is a scene where Jerry draws a picture of a cube on the wall with his watch. Later in the movie, the cube appears again on the wall as if drawn by an invisible hand due to the hypercube imploding. In that second scene, the cube, when drawn out, looks nothing like the cube Jerry drew in the first scene.