Continuity mistake: When Justin Bieber takes out his phone after being shot, the time on the phone is displayed as 1:48AM, but seconds later, when the camera pans down on the phone before the scene ends, the time displayed on the phone is now 1:51AM. Three minutes did not pass during this time.
Continuity mistake: Carolyn puts on her pink dress and asks Tallulah to zip her up. Tammy Blanchard puts her hair up in a bunch, but there's a large bang to the left side of her face that stays down. In the reverse shot though, she got all her hair up. (00:18:20)
Continuity mistake: The old man in the hotel lobby pulls the flowers out of the megaphone and calls the protagonist. She lowers the headset to talk to him. The left speaker is all the way across the opposite side of the neck in the first shot, less shifted to that side in close-up. (00:04:00)
Factual error: Kim is seen using a first generation iPhone in the 2006 scenes. The iPhone was not released until summer 2007.
Continuity mistake: When Lady Susan is counseling her daughter Frederica in her bedroom, the shot shows an unlit candle on a dresser behind Lady Susan. The shot changes back and forth between Frederica and Lady Susan. When the shot changes back to Lady Susan, the unlit candle is gone, though there is no one else in the room.
Continuity mistake: Mother and son run towards the store window as the Ford Galaxy is burning in the parking lot. At the end of the shot from behind, a woman with a lilac top and long brown hair comes into frame and leans against the vegetable stand. After the cut, with Jamie and the mom by the window, the same woman walks in again. (00:01:30)