Visible crew/equipment: Just after Owen Davian is run over by the truck in Shanghai, Ethan chases the rabbit's foot down the street. There is a high angle street scene of Ethan running across the road. A cameraman is visible on the footpath following Ethan. Also, the traffic is going against the road markings. (01:26:35)
Continuity mistake: During the bridge scene, soldiers approach the armoured vehicle to spray it with orange gel. As they approach, the vehicle has a triangular reflector on the rear side. In the shot five seconds later showing the orange gel being sprayed, the rear reflector is circular. (01:03:40)
Continuity mistake: Towards the end of the film, after Tom has been electrocuted to destroy the bomb implanted into his skull, we see the female lead trying to restart his heart, each time they show his eyes, they are closed or open in different shots, and if they are closed, you can see his eyeball moving underneath the eyelid.
Continuity mistake: In the scene in Berlin, the female member of the IMF team starts with no special glasses/goggles, then has them up on her head, then, just before the shooting begins, she puts them over her eyes, but later, while the shooting is still going on, they are back up on top of her head. Then they completely disappear. (00:17:50)
Factual error: The walls of the Vatican are guarded by humans not cameras.
Factual error: When Ethan hangs Davian from the plane's floor hatch, Davian's head is already all the way out of the plane with the air outside blowing at him. Yet when Ethan pulls him up we find that Davian overheard Ethan's name. With the fast wind blowing at his ears he could never hear anything but a deafening roar, making Ving Rhames voice inaudible even if he were screaming.
Continuity mistake: Near the end of the movie, when Tom Cruise is running through the narrow streets in China, while on the phone with the guy from IMF, he is nearly struck by a truck coming very quickly from an adjacent street. In the next shot, they show the road from which the truck had just come. The thing is, it's filled with people, none looking like a large truck just went barreling by. The truck was going at too high a rate of speed to have come from the heavily populated street.
Continuity mistake: When Ethan - after getting the rabbit's foot - calls Musgrave, his location is shown on a map. He is in the northern part of Shanghai, quite some distance from Pudong, the area south of the river, where the high rise buildings are. However in the next clip, he drives down the on-ramp to The Bund, which is the street right next to the river, opposite Pudong. So he's been driving in circles - and extremely fast.
Visible crew/equipment: When Zhen arrives at the courtyard in the Vatican, a gentleman opens the car door. A cameraman and crew member are visible reflected in the door. (00:44:35)