When the girls come after Claire at the hotel, they say they will go up to the 5th floor but the rooms numbers indicate they are actually in the 9th floor.
When the girls are driving, they have a conversation sitting at a red light. During different shots, cars are stopped in front of them and at other times there are no cars.
Subsequent to a wrestling gelatin match, Janet is rushed to the hospital via ambulance as she spits up blood from her mouth. The amount of blood on her face changes in between shots.
The police sirens don't sound as loud as they should coming down the alleyway that the four protagonists are running down, before seeking shelter in a dumpster.
When "Dave" calls, and Clair answers the phone, it is actually on the iPhone's main screen, not on the call screen.
Since the movie is supposed to be entirely self-filmed footage, there are sporadically two different shots of certain scenes in spite of one camera being used throughout the movie.
When the women exit the ambulance, the shadow of the camera operator with a full sized camera on their shoulder is visible, though the footage is ostensibly being filmed via a camera in one of the women's purse.