Plot hole: Joy and Sadness are stuck outside of the control center. They are trying to figure out how to get back, and encounter maintenance workers who are discarding old memories. The maintenance workers show that they have the power to send memories back up to the control center to be played. Why couldn't they send the core memories that Joy had back up the same way? Better yet, why not use that method to send Joy and Sadness back up to the control center? The director of the film is even aware of the plot hole, and said "Yeah, well then we wouldn't have a third act," before explaining how the idea of recalling memories was added in later, "box[ing] [the screenwriters] in a corner a little bit."
Other mistake: When Rusty is talking to the trucker on the C.B. radio, he hands the microphone to Kevin. Kevin never presses the talk button on the microphone when he is talking to the trucker.
Continuity mistake: When Anne Hathaway is showing Robert De Niro how to use Facebook, she pulls her phone out of her pocket as she asks if he has a photo of himself. When the shot changes for his answer, she pulls the phone out again. (00:53:20)
Visible crew/equipment: Towards the beginning of the film we see the convoy driving to Ciudad Juárez on the highway. In the reflection of the last car one can see the Russian Arm used to film the vehicles.
Continuity mistake: At the end of Margot Robbie's scene she picks up the champagne flute from her bathtub. The camera angle changes and she is no longer holding it, then picks it up again.
Continuity mistake: In the final chase, we see Max taking the arrow out of his hand and Furiosa pulling the knife out of herself. A few shots later, Furiosa is changing gears and moving the rig to the left of Max's rig. In that shot, the knife is still lodged in her body. (01:39:40)
Factual error: The main character from the video game "Paperboy" is among the alien invaders in the final battle; since that game was first released in 1984, he shouldn't be there, because the probe the aliens received featuring video game footage was launched into space in 1982.
Continuity mistake: When Frank Walker and Casey Newton get into Frank's bath to escape the robots, Frank gets in on the left and Casey gets in on the right. They get shot off but when they land in the swamp, Frank is on the right and Casey is on the left.
Continuity mistake: SPOILER - The wounds on Pietro's body change. The most noticeable one is on his right shoulder. The amount of blood decreases too.
Other mistake: Catherine lives in apartment 1 on the first floor, but she goes in to apartment 4 on the second floor and right in front of Neil's apartment. (00:06:26 - 01:10:28)
Continuity mistake: When SpongeBob says he should sacrifice himself, the squidosaurs Rex has Mr. Krabs in his hands, but when SpongeBob walks to the counter, Mr. Krabs is right next to Squidward. When the camera zooms in on a group of citizens and Squidward, Mr. Krabs is gone. Then, another shot of the squidosaurs Rex, Mr. Krabs is in his hands again.
Continuity mistake: When they pick up Warren on the stagecoach, the second shot from inside has the wrong direction of landscape outside, so it seems that Warren changed from the front to the back row.
Continuity mistake: In the scene near the end of the movie where the kidnapped father overpowers one of the bad guys and grabs his gun, he shoots out the front tire of the truck and he and Justin go running away. In the very next scene, Tyler and his buddy jump in the truck to chase the father and son and the tire on the truck is miraculously fixed and inflated.
Continuity mistake: Sue's hairstyle, as well as the texture and length of her hair, and the color, changes from scene to scene, and even at times from shot to shot. This was due to movie re-shoots.
Factual error: At one point in the movie, some characters are gathered in the break room that has bags of chips. One of these chip bags is a Doritos bag which has the modern logo. This logo was not implemented until 2013.
Plot hole: In the beginning, vampires are shown to be invisible in photos but then they seem to appear in videos like security footage and social media posts.
Continuity mistake: When Stuart is leaving the building, he enters a previous generation Mercedes Benz S Class. The next couple of shots where he is being followed by Bryan shows the newly redesigned S Class.
Factual error: During the opening narration Kyle Reese states that Skynet attacks humanity on August 12, 1997. In the shot of missiles decimating San Francisco, multiple 2005-present Toyota Priuses, Dodge Chargers and other late model cars are seen.
Suggested correction: That 1997 was from another timeline before the events in Terminator 2 altered history. It's possible those models may have existed earlier in that timeline than in our world.
This is assuming too much about the alternate timelines. There would have to be more concrete evidence that such things would be altered in said timelines. Also, considering that timeline is supposed to be what took place from Terminator 1 in its own separate timeline, we would go still by our own following the events of it leading up.
Continuity mistake: When the man drives his car into the cornfield and hits the boy with his vehicle and rescues the mom and her son they run out of the cornfield and back to the house. After the house catches on fire they run outside and his car is parked in the driveway.
Continuity mistake: Bradley Cooper has dried blood running down his face just after he sends the meals out to the star diners. Then in the next shot he rubs his sore eye - all the blood is cleaned up and it's a tiny smudge. (01:14:20 - 01:14:55)