Factual error: When Max falls out of the trap door in the airplane, they show an overhead view of him falling, shot from the ceiling of the bathroom. You see his body falling briefly before they cut the camera angle. With the speed of a commercial airliner being in excess of 500 miles per hour his body would have left the camera's view within a split second of him hitting the outside wind currents.
Continuity mistake: In the sequence of the laser rays, Agent 99 comes out of the sewer with her shoes on. Never the less, when she begins to do her stunt to cross without touching the lasers, she has them off. Then when she has crossed, she has them on again, but we never actually see her take them off or carry them while she is crossing.
Continuity mistake: The skydiving sequence between Smart, 99 and Dalip is a mess of continuity errors; obviously the product of multiple takes/jumps. It begins over fields with no clouds below them, then on each subsequent shift in camera angles the area below them is either completely cloudy or clear. Then they fall through the clouds (which were not there originally). After coming through the bottom of the clouds the scene continues to shift between them falling to a cloudless background and a cloudy one.
Factual error: When Max falls from the plane without his parachute it takes 99 over 30 seconds to make her jump (actually much longer because the scene was cut several times during her preparation to jump), yet she catches up to him in a few seconds. In actuality it would have been impossible for her to catch up to him. In the time it took for her to jump a commercial airliner would have traveled well over 5 miles. A previous corrector proposed that it would have been possible because Smart would continue moving in the direction of the aircraft after exiting it. Not true; a skydiver's lateral velocity drops to zero within a few seconds because of wind resistance. Also, Smart would have dropped well over 1600 meters in the time that it took 99 to jump. At the steepest decent angle and maximum velocity possible 99 could not make up the distance (sorry to mix standard and metric units here; I've researched this information on multiple skydiving websites).
Factual error: In the beginning of the film, Max is walking down the National Mall listening to his iPod. He walks toward the Smithsonian Building (the supposed location of CONTROL's headquarters). However, in the next shot, he is entering the National Museum of Natural History, which is on the other side of the Mall and is further down. Also, exhibitions of CONTROL's history are seen in the museum. The Museum of Natural History exhibits prehistoric and natural objects. The exhibition on CONTROL should actually belong in the Museum of American History.
Continuity mistake: In the plane's bathroom, when Max is about to be sucked out of the plane, he has his swiss army knife in his mouth. But in the next shot, the bird's eye view of him being sucked out, his swiss army knife vanishes. It's foreseeable that in between shots Max uses his hands to pocket the knife but both the speed at which he would have to do it and the fact his hands are still clenched in the same position they were in the previous shot makes it very unlikely.
Continuity mistake: Prior to Max being sucked out of the plane, he holds his knife in his mouth. When he is ejected, he is still carrying it in his mouth. He screams, however, and the knife should have fallen. But Max supposedly still has the knife later in the movie. (He tells 99 to take his knife from his pocket.) It is possible he pocketed it, but unlikely, as stated in a previous mistake.
Continuity mistake: When Max and the Chief are in the plane, the banner is attached to the cable at the end where it says "IT." When they go low and Max is by the yellow truck, the banner is now attached at the opposite end, where is says "suicide." In later shots it's attached back the other way.
Continuity mistake: When Agent 23 kidnaps Agent 99 at the end, he puts her in the car, he then gets in and drives away. He is wearing a suit jacket and tie but the next interior shot shows him without the jacket or tie, his shirt undone, and sleeves rolled up. Impossible to do at any time while driving, let alone in a car chase.
Continuity mistake: When Max is entering CONTROL through all of the doors and a paper gets caught in one, the paper is moved out of frame as a whole piece of paper. When the camera moves up, the paper is now ripped in half. Even though you hear a ripping noise afterwards, enough time has not passed for the paper to be ripped and it is one continuous shot.