28 minutes in, when the journalist who was taking photos is handcuffed, in one shot he is holding the handcuff in his right hand, but when the camera shoes him a few seconds later, he is properly handcuffed.
When Reid and Lila enter the bedroom, just before Maggie appears, you can see sound-crew moving behind a pot plant in the bottom left of the frame.
Reid refers to the murderer "John Robert Bardo." This is incorrect; Bardo's name is actually Robert John Bardo.