Factual error: Both the Yugoslav police officers Poirot is speaking to at the end are black. The chances of a black person serving in the Yugoslav police in the 1930s were zero.
Deliberate mistake: The Messerschmitts have painted yellow fronts, this wasn't done by the Germans until after Dunkirk. Christopher Nolan has admitted doing this deliberately so the audience could tell the difference between the Spitfire and the Messerschmitt during the combat scenes.
Factual error: Eddie specifically tells the gang not to take his mom's "Delicious Deals" snacks because his mom loves them. But Delicious Deals are made by Mrs. Freshley, a company that was not founded until 1994. The boxes used in the movie even include the modern design that can be found today in most Dollar Tree stores. (00:23:00)
Factual error: In the scenes where Gardner is messaging his Earth based female friend Tulsa from his Mars home, their communication is shown as being in real time. In truth, there would be minimum of a 4 min lag between messages due to the distance. (00:24:00)
Suggested correction: The tech is supposed to be highly advanced. This is at least kept consistent throughout the film as all communication between planets is in real time.
There is no tech that can alter the laws of physics that we know of. The near future setting of the film limits the scope of what's feasible.
Continuity mistake: When the main character goes to visit his friend that had been shot in Iraq, they're driving down a country road in a 2 door Dodge Challenger, but when inside the vehicle it's a Dodge Charger, which is a four door car.
Factual error: Robert McNamara is wearing a multi colored Polo shirt talking to Mrs. Graham in 1971. The Ralph Lauren Company did not make the shirts until 1972.
Visible crew/equipment: While Barnum and Phillip sing "The Other Side" Phillip uses two stools to get up and down from the bar top. When he steps down from the bar top, in this wideshot (also the first shot of them in the pub and other shots) the two upright stools Phillip used are secured with additional support, note the floor area underneath the stools' legs have the same pattern as the rest of the floor, though we can see the outline where the pattern's lines don't match up. Additionally, we also see three actors' marks (in the shape of an "L") on the floor in front of the bar, which will be where Barnum and Phillip will stand when they agree on the ten percent. (00:36:05)
Other mistake: When Christian and Ana are discussing his birthday, you can see Christmas decorations in a window they pass, indicating that his birthday is somewhere around that time. However, his birthday is in June.
Factual error: When Reynolds is pulling up to the gas station headed to the countryside, you see a blue Michelin sign on the left against the gas station's building. The 'Michelin Man' logo style seen on the sign was not in use until the 2000s. The movie takes place in 1950s. (00:11:50)
Character mistake: When they are having the going away party for Paul, "leisure" is spelled wrong on the cake.
Continuity mistake: When Mildred and her son pull up in the station wagon, there is a drink thrown at the car that hits the windshield. She gets out and confronts them, and then walks back to her car, with no evidence of anything having hit the windshield. It would be running down the glass and was a pretty thick substance. (00:59:00)
Factual error: When flying to France to have talks with the French premier a C47/Dakota is shown in the background intimating that it was the plane he came in. The C47 did not enter service with the RAF until after this period of the film with Lend Lease.
Suggested correction: The aircraft could just as easily be the civilian version, the DC-3 which first flew in 1935, and was pressed into RAF service and repainted.
The RAF did not requisition civilian DC3s or DC2s. It is well recorded that Churchill flew to France in May 1940 in a de Havilland DH.95 Flamingo. Only 16 were built - de Havilland cancelling DH.95 production to make more Tiger Moths desperately needed for pilot training. The DH.95's were cannibalised for spares, the last scrapped in 1953, so the film production company may be excused for their C-47 use. Though a Lockheed Lodestar may have been a closer simile.
Continuity mistake: When Pierce first begins to interrogate Caliban in the safe house in Mexico, a large portion of Caliban's albino makeup is smudged below his nose, revealing the actor's natural skin in his first close-up of the scene; after switching to a close-up of Pierce, then back to Caliban, the smudge has been fixed.
Continuity mistake: When Ethan knocks down the hot dog stand, the tray on it swaps from skewed to straight and back to skewed between shots.
Factual error: While featuring a brand-new 1962 Cadillac, a 1963 Chevrolet and 1963 Ford are shown.
Continuity mistake: When Tonya's husband is fixing the car, his tool box disappears when he goes to close the hood.
Factual error: Sug Knight drives under the Monorail tracks. These tracks were not built until after 2002. Tupac was killed in 1996. (02:12:00)
Continuity mistake: When Yossi Ghinsberg falls from the plot to the river, he swims to left bank of the river (you can see the water flow from right to left). Afterwards he stayed on the same bank of the river. But later we see him to look down to the river from the right side (water flow is from left to the right). How did he get there? (00:52:25 - 01:14:23)
Factual error: M60A3 tanks and AH-1 were no longer in service at the time of the invasion in 2003, replaced by the M1 Abrams. The AH-64 humvees have crew protection that did not exist prior to 2005.
Continuity mistake: When Auggie and Jack are running from the bullies Jack gets closer to one of the trees between shots.