Throughout the movie, the wound in Laura's side changes back and forth several times.
When Bruce visits Laura at her house after she is released from the hospital he gives her a necklace. She has it on when she looks in the mirror and then goes to put the necklace box on a shelf. Her back is turned from Bruce. When she turns around to talk to him, the necklace is missing.
All the personal property that was on the rented boat would have been collected by the local authorities and left left behind for anyone to grab.
The picture she drew during the birthday outing of her boyfriend was still on the boat over a week later undamaged by the weather.
Bre jogging in the middle of the road wearing ear buds and noticing that she is being followed, yet crosses intersection getting hit is too unrealistic and someone would have seen it in a residential neighborhood.
No mother is going to give a perfect stranger keys to her house, even if that person saved her daughter in the manner of this movie.
No mother is going to bring a stranger, even if this was someone who intervened as Bruce did to her daughter's bedroom. She would have called her daughter downstairs to meet the guy.