Revealing mistake: During the airport scene, after Tony tells Wanda that she hurt Vision's feelings, Tony and Hawkeye have their own banter moment. Then, when Hawkeye says, "Made you look," the next shot as the car is falling, Hawkeye is reversed; note his arm guard. (01:32:15)
Continuity mistake: Sydney gives her phone to Liv at the prep rally to film her first dare. The case has a very distinctive blue furry case. However in one shot of Liv filming Sydney, it has a black and white case. This cannot be anyone else filming as it shows Liv's arm. Also the nail polish changes color. (00:07:20)
Continuity mistake: When Sang-hwa is holding onto the first zombie he comes into contact with, he grabs onto the zombie's hair and some of its hair is in the gap between Sang-hwa's thumb and finger. In the next shot, that hair in between his fingers is no longer there. (00:25:45)
Revealing mistake: When Gabby and Fin are hanging off the building in Las Vegas, you can see that Gabby isn't holding on to anything in some close-up shots. (00:11:47)
Continuity mistake: When Holland shows the bartender the dollar bill in the shape of a shirt, he is smoking a cigarette before he takes the cigarette out of his mouth. Holland mentions to the bartender that he made it himself, with nothing in his mouth, but in the next shot, the cigarette is suddenly back. (00:09:45)
Continuity mistake: When the G.R.S. team is on their day off (9/11 anniversary), Tanto is seen video chatting with his wife. In the frontal shot of him, he's using a Samsung smartphone, but in the next shot, it changes to a Blackberry. This is done multiple times throughout the scene.
Character mistake: When Mike's wife is watching the news about the oil rig on fire, you can see the TV with part of the U.S. map on it and 'Mississippi' is misspelled as Missisippi. (01:09:10)
Other mistake: The agent infiltrates Barkawi's daughter's wedding and sends a message to the US military to bomb the place remotely. On the agent's phone he types "Barkawi on sight" and clicks send, but there is no phone number or contact. (00:04:30)
Continuity mistake: At the magic shop, when Daniel is reading out the list to Li, Daniel first has his right hand on the paper, but in the next shot, he is holding the paper with his left hand. (00:44:20)
Character mistake: The Master of Psychology Degree from Tulane University has a spelling mistake. School of Political Sciences is spelt 'Scineces'. (00:54:05)
Character mistake: In the newsreel during the growing tensions, a newspaper headline featured with great importance goes like this; "ABUCTED son not yet found." (00:04:30)