Continuity mistake: When Harry and Erica are having a picnic at the beach the sun light changes from shot to shot.
Continuity mistake: When Harry and Erica go to "sleep" together, they're on particular sides of the bed. The next morning, they're on opposite sides of the bed when they wake up.
Continuity mistake: When Harry and Erica lay in bed to "sleep" together, they are each sleeping in certain sides of the bed. The next morning, they've switched places in the bed.
Continuity mistake: When a plate comes suddenly crashing to the ground, Erica is seen standing in her kitchen, above a white plate with a few bits of leftovers on that cracked plate. She is arguing with her sister about the "appropriateness" of the relationship between Harry and her daughter. As she bends down to pick it up, the plate is suddenly filled with red tomatoes and a heap of leftovers.
Answer: When they were trying to see what time it was the morning after they had slept together.