Continuity mistake: The kids are in the car with their dad, and despite the best efforts from the youngest, they are reached by his teacher. As the dad starts the "You were killing us" joke, his hand is on/off the steering wheel between shots more than once. (00:07:15)
Continuity mistake: The color of Lance's clothes change from a dark tan, brown, or grayish color on the train to blue walking through the train station and riding to Jack's place. Lance also has his jacket on the entire time - until he is at Jack's front door (where the jacket is no longer visible). Jack kept his coat on in the car, his apartment, and to play cards. (00:03:44)
Continuity mistake: When the Homeland Security guy is sitting in the lobby in Vancouver, Canada, a girl and another man are walking behind him and across the lobby in the wide shot. But when it zooms in on him, the same people and more are walking behind him again as if they never were crossing the lobby. (00:28:45)
Continuity mistake: First argument. Leilani shouts "Why are you being so loud right now?", with a hand behind her neck. She does not start the next shot in that position, she puts her hand there only a second later. (00:04:05)
Continuity mistake: When Nick leaves to deliver presents he walks out the door and you hear the door close. When his wife goes after him with the flask you see him opening the very same door he's just walked out. (00:24:50)
Continuity mistake: Kareem's mom is talking to her coworker about the fact that her son asked for James to pick him up at school. When she mentions that it's not seen as the coolest thing to date a cop, and a white one at that, her friend goes from hand low, to smoking with that hand, to drinking from the cup, in the span of a few words and a couple quick cuts. (00:09:45)
Continuity mistake: When Johanna and the Captain are being chased by Mr Almay and his associates, their position in the wagon changes. First Johanna is on the Captain's left. Next shot she is on his right. Next shot she is back on his left. (00:42:14)
Continuity mistake: Just after arriving in the Korean Peninsula, the group is shown walking across an abandoned road. There is a shot where Jung-seok has his rifle raised so that he can look through the eyepiece and is then shown lowering it. Then it cuts to an overview shot where the rifle is suddenly raised to Jung-seok's eye again and then lowers it once again. (00:19:52)
Continuity mistake: A vast majority of the movie occurs over the course of a single day, so it would be expected that Becky's hair stayed about the same. However, there were frequent fluctuations in Becky's hair's length, how her bangs were arranged, and color (whether the blue streaks could be seen at all or how much at a given time, and if she had dark roots on the top of her head).
Continuity mistake: The appearance of Grace's house by the front door (to the left of the screen) changes from the time Billy is standing along the road to when he meets his mother half-way. At first, the side of the house is mostly white; it is mostly brown thereafter. The garage area to Billy's left also changes color from brown to white. (00:05:22)
Continuity mistake: Early in the film when Jake gets in his car to head off to pick up his son, his seatbelt is on although there is no sight of him putting it on, then, as he pulls away the seatbelt is off.
Continuity mistake: A large-screen TV was on the wall opposite the staircase when Carol and Victor reached the top. Part of a small high window (above the lamp) could be seen near the top of the TV screen. When the camera shifted to the opposite side of the room, the TV temporarily transformed into a large window with floor-length drapes. (00:48:02)