Continuity mistake: In the shot where Boris, Annabelle (as Ellen) and Ben are in the car , and turn left in front of a lorry you see a police car next to the pavement (not the ones that have fallen of the lorry) and it is parked underneath a sign. After you see Boris etc. again in the car, they are parked further back than before.
Continuity mistake: On the bus, after collecting her coins, Annabel walks back to take a seat with her friend. As she's pulling on her sock, she notices her foot is dirty. Then there's a cut to a closeup of her sole, showing a slight smudge, as she (her mother) comments on how dirty the sock is anyway. Her foot is much, much dirtier in the first shot and in the one following the cut. (00:22:05)
Continuity mistake: In the scene where Annabelle is driving to the Marina, you see Mrs. Schmouse leaving the liquor store and getting on her bicycle. She starts going down the street, and is about to go through an intersection, when Annabelle comes down the street honking. Mrs. Schmouse (in an attempt to not get hit) pops a wheelie. In the far shot when you see Annabelle pass her, she begins spinning on her rear wheel while doing the wheelie. The stunt person in the far shot is rotating one way. In the close-up of Mrs. Schmouse, when she shouts "Road Hog", we see her rotating the opposite way of the stunt person.
Revealing mistake: On the bus with her friends, when Annabel pulls off her sock full of change, the coins fall from behind her, not out of her sock. It looks like the "driver" dropped them just as she pulled it off. Clever way to get a tough shot. Her sock is also rolled the opposite way from how it should be. To help her get it off better, probably. (00:21:35)
Continuity mistake: Throughout the movie, the characters' thoughts are in the voice of whoever's "soul" it is. However, in the scene where Annabelle (in Ellen's body) is having issues with the washing machine, she thinks "whoa there, you just have a little case of the hiccups" and the voice is Ellen's.