After Hallie and Annie switch places, and Annie is at her fathers house pretending to be Hallie, her and her father are horse riding and she rides off when he is about to tell her about him and his fiance. Hallie/Annie walks into a room where there is a chair and you can clearly see no-one is in it, then it changes to another clip at a different angle and back again and Jessie is there getting up out of the chair.