When Jon looks at Lyndzi's phone in the kitchen, it is a completely different phone than it is in any other scene of the movie.
During the final crane shot in the bathroom the shower curtain is missing.
(at around 13 mins) During the shot when Connor looks towards the camera through the kitchen. If you look closely, just before the camera rack focuses to the cell phone you can see somebody's hand moving off to the right of the screen.