Continuity mistake: As Ben and Will are first going up the elevator in the tower, Ben mentions they needed someone like Will to check the math on their systems. One shot shows Will standing still looking at him in a close up, but in a wide angle it shows Will shift and turn a bit towards Ben. Then in the next close up shot of Will he's suddenly back to where he was. (00:10:50)
Continuity mistake: When they are first fighting, Will throws Ben onto the dishwasher. And as he rolls off it, there is a blue plate with a wooden spoon sitting on top of it. When Ben turns and grabs for a knife in the dishwasher, suddenly the blue plate is gone and replaced by various tupperware, and the wooden spoon is now standing up in a slot. (00:24:10)
Continuity mistake: Ben tries to stab Will with a kitchen knife and he catches it in the stove bars. Will spins it around on Ben and is pinning him down, and the knife is pointed with the sharp edge up. But in the next shot, suddenly the knife is turned so the sharp edge is down. (00:24:30)
Continuity mistake: When Zhao is realizing he's been locked out of his own system, he places his hand on the monitor perplexed. His hand is right under the word Authentication. In the next shot, his hand is suddenly to the left of the word Security. (00:34:30)
Continuity mistake: The small bandage on Will's left arm changes size through the film.
