Other mistake: When Elastigirl is chasing the high-speed train, as she is in the middle of making her second final jump to reach the train, if one were to look closely, the train actually drives right past her before she lands. (00:31:40)
Other mistake: Davis tells Kate to go and she jumps out of the falling plane, her chute opening. Davis then takes a minute to free Harvey from the plane as it's still falling before they both get out. Once they are free falling he takes a few seconds before he pulls their chutes as well. However as they are coming down close to the plane crash site, Kate is near level with them in altitude as they are all coming down together. With how high she was when she jumped out compared to the time it took for Davis and Harvey to get out of the plane and open their chutes, she would have been several minutes behind them in the sky, not right next to them. (00:47:45 - 00:49:05)
Suggested correction: She jumped first and would have already descended in altitude. Then the guys jump and freefalled and pulled their chutes so it is plausible they caught up to her altitude when their chutes opened.
Other mistake: When Helen turns right to "head to the stacks" everyone in the back of the van falls to the right. Centrifugal force would push them to the left. (01:56:06)
Other mistake: When Benji takes off the Wolf Blitzer mask, he continues to talk with the anchorman's voice until he takes off the voice altering tape too, but when Walker realises that he is not talking to Solomon Lane and proceeds to rip off the mask, Benji talks with his own voice without taking off the tape.
Other mistake: At the beginning of the movie, Kate is going through old tapes recorded by her dad on a TRV280 handicam. The second tape shows her as a baby in her dad's arms and it's dated Dec 25 2007. She starts a recording on a leftover blank tape and we see the date; Dec 24 2018. Her brother taunts her holding the camera out of her reach and tells her "You're 10 years old. Almost 11!", and she asks "So?" She should have said "You jerk, you don't even know my age?" She is 11 already. (00:01:00 - 00:04:15)
Other mistake: Throughout the movie, Hank's lab in its shrunken form is constantly jostled and tossed around, but when it's restored to full size in a new location, nothing is out of place and everything still works perfectly.
Suggested correction: Given that he has prepared the lab to be shrunken and mobilized at a moment's notice, he probably thought of this ahead of time and secured everything important in place.
Perhaps he could secure some things, but there's never so much as a computer monitor out of place.
It's a fair point. I agree that some things should definitely be out of place, but given the importance of what he is working on, he would take measures to ensure that the important things wouldn't become damaged and inoperative when the lab is being moved around. We see on at least one occasion that he has ants roaming the lab, so it's possible he trained them to ensure that the Quantum Gate and any device essential to its operation are protected at all times.
In a world in which a man becomes the size of an ant, I guess any correction could be invalidated. I this case, there are any number of reasons why everything, down to paper and pens, never moves. Maybe the ants pick them all up. Maybe gravity works differently when shrunk. This means that basically any movie that uses magic or magic type technology would never have a valid mistake.
Other mistake: Towards the end, Chewbacca and Beckett have walked some distance from the landed yacht. They come up a small slope and are faced with Han, waiting for them. But an aerial shot shows that slope is very short and just runs down to a cliff. There's no way they could have got to the base of the slope to walk up it in the first place.
Other mistake: When Tom is being hit with the fruit, he is being hit high enough for Bee to see the fruit but doesn't react to random fruit hitting Tom. (01:00:15)
Other mistake: Vanellope steals a car from the Slaughter Race game and speeds off. Shank, the main character of the game, commandeers another car and chases Vanellope. When Shank's car is seen in Vanellope's rear-view mirror, the image is not reversed. Shank appears to be driving from the passenger seat.
Suggested correction: We see the mirror and it in fact is a mirror image of Shank driving.
Other mistake: At the beginning, while Wade is lying on the barrels, he throws the cigar and causes the explosion. The problem is that the cigar gets in one barrel but another one explodes instead.
Other mistake: The red rescue helicopter which is approaching and crashing is a Jet Ranger while the model filmed later on the crash site is a MBB BO 105. Most obvious are the differences in the landing skids and the front nose of the cabin. I guess the Prop used for the ground filming was an actual abandoned helicopter. The approaching and crashing helicopter is most likely CGI, so it should have been easy to have them matched. (00:15:00 - 00:21:00)
Other mistake: When Tom picks up Atlanna when she washes up, she's unconscious, but she's able to hold on to her trident.
Suggested correction: It is emphasized that she is still holding it even when unconscious.
Other mistake: In Jurassic World, we are told that the Gyrosphere can stop a .50 calibre bullet. When it falls into the sea in this film, Owen shoots some holes in it using a pistol and manages to prise the door off using a small knife.
Other mistake: It isn't known if Rory was diagnosed with ASD, but some of his behaviors and the two classmates in school making a reference to his "Asperger's" indicate or suggest this is the case. While Rory may have been "faking" some mannerisms in hope that the two bullies would leave him alone, his (hyper) sensitivity to noise (sound) was displayed after school when a dog was barking at Rory. However, Rory did not put his hands over his ears in the ball field despite the loud gunshots close to his ears. (00:51:54)
Other mistake: After Sarah gets Slappy into the locker he could see Tyler from inside but the problem is that the angle and the height of the vents are wrong for that perspective.
Other mistake: When Boyce and Ford are watching Chloe and the Nazi officer through the floorboards, the former are in the attic, the latter downstairs in the living room. Surely looking through the attic floorboards would only allow a view into one of the bedrooms. How then do Boyce and Ford manage to see down into the living room?
Other mistake: The remaining four people at the power plant are evacuating ahead of the explosion of the bomb they set. They are running towards the helicopter to escape. The scene shows the helicopter with the rotors already turning. But there is no-one on board, much less a pilot to have started the helicopter. (01:21:10)
Other mistake: After Kevin and Holly go kayaking in the ocean and get to shore, their upper bodies and hair are dry despite having been in a tandem-style sit-on-top kayak, which generally means the kayakers will get quite wet. (00:03:40)
Other mistake: McGonagall appears as a young professor at Hogwarts, even though the movie is set in 1927 and she wasn't born, according to the official Harry Potter canon, until 1935.
Suggested correction: JK Rowling, who had admitted she's terrible at math, has changed her mind about McGonagall's age multiple times. First she said she was 70 in 1995 (putting her birth year as 1925), then on Pottermore she said she was born in 1935, then after this movie came out she nixed that section of Pottermore and left her birth year unconfirmed from then on. If the author who created this world can't make up her mind on how old she is, we can't definitively give her a year of birth either.