When Jerry arrives for his date and gets out of his car holding flowers it's daytime. By the time he gets to the door it's night and all the lights are on in the house.
When Harriet is at Emily's house studying, her purse is flat up against the record player. However, when she goes to leave, the purse has been turned ninety degrees and is perpendicular to the record player.
When Jerry gives Emily her sweater on the beach, her voice can be heard saying "Thanks" but her lips do not move.