Continuity mistake: When Behrani is reading the article on the house it states it has two bedrooms. But the salesman states it has three - which it does. (00:06:05 - 00:15:10)
Continuity mistake: When Behrani is eating a Snickers bar near the beginning, the wrapping on it changes position as he eats it and then when he is writing in the ledger, the bar changes position on the counter beside him. (00:14:20)
Continuity mistake: When Lester drops Kathy off to a motel, she talks to him through the window after getting out and the car is completely light inside. But in the next shot as she walks away the inside of the car is pitch black. (00:24:00)
Continuity mistake: When Kathy is sitting in the Behrani house, she picks up a photo frame, looks at it and sets it back down. After it has been set down it changes the angle it sits at instantly. (00:33:40)
Continuity mistake: When Behrani is trying to force Kathy back in her car as she shouts at him, her hair is over both her shoulders in one shot. In the next the hair over her left shoulder is now behind. (00:52:00)
Continuity mistake: When Behrani is talking to his son who is sitting in bed, the pillow behind him moves from being horizontal to vertical, behind him instantly. (01:07:50)
Continuity mistake: When Carol gets out of the car to confront Lester, she closes the car door, but after she hits him it is slightly open, then closed again in the next shot. (01:10:10)
Continuity mistake: The first morning that Kathy wakes up in the cabin, she pulls on a t-shirt and exits the front door as her hair is still tucked inside her shirt. In the very next shot, as viewed from the outside, her hair is instantly outside the t-shirt. (01:12:05)
Continuity mistake: In the scene where Behrani carries Kathy out of the bathtub, and has to put her down because Lester orders him to do so, his shirt is wet from Kathy. In the next shot, when Behrani has put Kathy down on the bed and talks to Lester, his shirt is no longer wet. The time in between these two events can not have been long enough for the shirt to have dried. (01:30:55 - 01:32:45)
Continuity mistake: When Kathy is in the Behrani's bed, having been woken up by Les, they are talking, and the bedcover shifts from being about 4 inches down from her neck, to up around her chin from one shot to the next. (01:39:40)
Continuity mistake: After Behrani's son (Esmail) is shot by the police officer, there is an aerial view of the two officers approaching Behrani and one of them kicks the gun on the steps to the side. Then, in the next shot, you see the officer kick the same gun to the side again. (01:43:45)
Continuity mistake: When Behrani puts the plastic bag on his head, to suffocate himself, we see shots of him breathing heavily. In one shot the bag has become very condensed with his breath, yet when we see him take his final breath, the bag is perfectly clear. (01:52:55 - 01:53:50)
Revealing mistake: When Kathy is ripping open the plastic bag tied around Behrani, watch closely and you can see Behrani's eyelids flutter, although he's dead. (01:54:40)
Continuity mistake: Right after Ben Kingsley has the roof terrace built, there are some shots in the garden, in front of the stairs that lead to the terrace. Here the paint on the wood already looks weathered.
Chosen answer: I believe the post is refering to when Ben Kingsley's wife is yelling at him after the cop first threatens them with deportation. But his wife calls him a coward, not a traitor, and there is no one in the scene except for the 3 family members (I've gone through the scene several times in slow motion).