Continuity mistake: When Eddie falls through the floorboards, you can see his arm looks perfectly fine and is unbroken in a few quick shots. After the movie cuts back to him a few moments later, suddenly his arm is badly broken. (01:20:30 - 01:23:25)
Continuity mistake: When the Stukas are shown bombing the beach, they drop a single bomb, but from beach level, you see sticks of bombs landing.
Suggested correction: The Stukas are dropping SD-2 canister bombs, a particularly nasty anti-personnel weapon. Upon release from the aircraft the bomb divided into the bomblets you see here.
First known use was bombing of England, no evidence they were used at Dunkirk. Also, the SD-2 was smaller and produced numerous small explosions. The ones we see in Dunkirk are larger and much bigger than anything the little SD-2 could ever produce - so the original criticism sticks.
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.
Continuity mistake: During the "This is me" sequence, the tattooed man is wearing a red cape. During the last few seconds of the song, he loses the cape and then it reappears again. (00:59:55)
Continuity mistake: The table outside the train, where Hercule and Ms. Debenham were sitting at with the coffeepot and cups, is missing when they stand up and return to the train.
Continuity mistake: When Ana and Christian prepare for the masquerade, Ana is wearing sexy underset comprising corset, stockings and everything. After the party when they start having sex, Ana wears nothing but underpants underneath her dress.
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)
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 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)
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.
Continuity mistake: When Tonya's husband is fixing the car, his tool box disappears when he goes to close the hood.
Continuity mistake: When Auggie and Jack are running from the bullies Jack gets closer to one of the trees between shots.
Continuity mistake: When Mae and Ty meet, when Ty asks what does she think of this, Ty begins removing the lid from the bottle of wine he is holding, but in the next shot, the lid has suddenly been removed from the bottle, with his hand nowhere near it. (00:21:25)
Continuity mistake: When the bald soldier gets into the cage of the apes, the amount of mud on his face changes between shots.
Continuity mistake: Mr. Butler parks his car close and parallel to his house. The night/morning Lucas slashed his tire, the car was parked away from and perpendicular to the house. It is worth mentioning that instead of Lucas going on the passenger side of the car where he would be hidden between the car and the hedges, he slashed the tire out in the open where he would have been more likely to be seen and caught. (00:27:15 - 00:28:30)
Continuity mistake: When Churchill is delivering his first speech on May 13th, Neville Chamberlain places a handkerchief on his leg to use as a signal to his fellow MPs. During the speech you can see Chamberlain sitting a few places away from Churchill but the handkerchief is missing. Then, a short while later in the same scene, the handkerchief is back with Chamberlain's hand over it.
Continuity mistake: When Tommy and Greg get into the limo to head to the premier, there are boxes of The Room merchandise and promotional material scatted all about in the limo and filling the driver side of the back seat. But in the shots after they drive past the theater, the seat is suddenly completely empty with all those boxes disappearing. They are also missing in several of the close ups of Tommy, then back in others. (01:20:15 - 01:21:00)
Continuity mistake: When Suge Knight pays Tupac for a song in cash. He stacked up $100,000 in two stacks of $10,000. In the next shot the bundles of $10,000 are spread out on the table, and then the bundles are stacked up again. (00:56:00)
Continuity mistake: When Mack and Jesus are running on the river, they switch sides between shots.
Continuity mistake: Near the end a crowd is watching the sunset and Paul and Ngoc are hugging. The shot changes and they are just side by side, then suddenly hug. (01:53:30 - 01:54:40)