Continuity mistake: In Bourne's Paris apartment, Bourne takes off his orange jumper and leaves it on the desk. When he kicks Castel over the desk, the orange jumper is knocked to the floor. After Castel goes out the window, the jumper is back on the desk again.
Factual error: Driving from Zurich to Paris does not cross snow covered mountains or high altitude passes. It's a smooth flat drive even if you choose the smallest roads.
Factual error: 104 Rue du Jardin does not exist in Paris. They stop on a rather large street which would be called a "boulevard" in Paris. Not a "rue." (00:37:05)
Factual error: When his team are tracking Marie, Conklin asks about the yellow pin in the map and is told she lived there in 1997 and that the nearest town is Riom. The pin is on the town of Nevers which is 170 km from Riom, with several towns much closer than that. (01:22:10)
Continuity mistake: When Bourne leaves his Paris apartment, the dead lady's head position changes between shots.
Continuity mistake: When Bourne is on the phone with the French hotel asking whether his identities are checked in there, his right hand changes from holding passports to holding the phone between shots.
Continuity mistake: Early in the film, Matt Damon is running up several flights of stairs. He is shown walking around a corner when the camera suddenly cuts to a different angle. In the new angle, he is shown running around the same corner. (00:22:27)
Continuity mistake: During the car chase in Paris, the sun shines when the camera films the front of the car Bourne is driving, but it's grey and gloomy when the camera films the rear of the car. Changes back and forth throughout the entire car chase.
Continuity mistake: In the car chase scene, the windscreen wipers on the Mini change from being on, then to off, then back on again throughout the whole chase. (00:52:42)
Audio problem: In the farmhouse scene where Jason is pursuing the other assassin, you can distinctly hear the calls of an American Crow and a Blue Jay, two species of birds that are not found anywhere in Europe, where they're supposed to be.
Visible crew/equipment: When Bourne is scoping out the bridge he is supposed to meet Chris Cooper on, a piece of camera equipment is showing on the right hand of the screen.
Revealing mistake: In the night scene where the Professor is driving in the rain to assassinate Womboosi, 2 people are visible in the car when it is shown from the front. Later he states that he always works alone so there is no reason for the other person.
Continuity mistake: After Bourne dyes and cuts Marie's hair, she is left with long tendrils at her temples. He brushes them away when they start kissing. But the next morning, when Marie wakes up in bed, all of the front of her hair is cut short.
Visible crew/equipment: Hanging on the balcony of the embassy, Bourne's stunt double is very noticeable because he is much older and has longer hair.
Continuity mistake: When Wombosi gets assassinated, the shot changes to a view of the sniper's scope. The glass on the window is not broken, even after a bullet was fired through it. (01:03:44)
Continuity mistake: In the scene where Jason Bourne first wrestles with the boat's doctor/captain, the man shows Jason the cylinder that was in his hip and asks him why it was there. Jason grabs it and his hands are clean, then in the next shot as the medic is still holding him there is blood all over Jason's hand as Jason continues examining this cylinder, then the blood disappears again.
Revealing mistake: When Jason climbs down the broken fire escape, the Embassy Marines are close behind him. One of them kicks open the exit door, he is wearing a pair of Navy blue trousers with a red stripe down the leg, along with black leather shoes (like most of the other Marines). When the Marine kicks the door open, it cuts to him looking down. His pants are now dark green or brown, along with different shoes. This shot being almost the same when Jason walks through the door and looks down.
Continuity mistake: When Jason breaks through the embassy fire escape door onto the outside platform the metal door has two round keyholes. However, when he climbs up onto the railings it's a different door which has a different type of lock with a rectangular keyhole cover plate. Also, initially there is a chain welded to the top of the left hand railing above a small hinge and extending across to the right-hand railing. The next shot shows the chain wrapped around a large hinge further down on the left-hand railing. (00:23:07)
Revealing mistake: When Jason is escaping from the embassy building the railing comes away from the wall. The man hanging on the building by one hand when the red bag falls is obviously a stuntman because he has curly hair. (00:23:32)
Continuity mistake: When Jason is on the 5th floor of the embassy looking for an exit he is holding a walkie-talkie in his right hand, wearing white earphones and carrying the red bag on his left shoulder. In the next shot the white earphones and walkie-talkie have disappeared and the red bag is suddenly on his left shoulder. The bullet hole pattern in Jason's back has also been reversed as if the scene had been flipped. (00:22:32)
Chosen answer: He is taping up the car window that he broke in order to keep some of the winter weather out.
shortdanzr ★