Continuity mistake: As Melanie and Mitch go back into the house after Lydia calls him he grabs for the doorknob and we immediately here the sound of it turning as he walks through the other side of the door in the next shot. The problem is that they left out the screen door he would have had to open first before he could have entered the house. (01:34:55)????
Continuity mistake: As Annie leans up against the middle of the red mailbox she knocks the flag down. When we see her again her right arm is pushed up against the front of the mailbox and some amount of time, longer than the three seconds implied, has gone by as the shadow of the mailbox's handle moves between shots. (00:18:00)????