When Laura and Kelsey arrive at Dylan's house, he walks out to meet them. In the first shot of the front door, as he opens it, there is a large Indian-themed pot on the porch directly in front of the door. In the next shot, as he walks across the porch, the pot is absent. In the next shot, as Kelsey jumps in his arms, it is there again.
When they are all sitting on the picnic table having lunch, the food on Kelsey's plate changes between shots.
When Laura is explaining to Kelsey about why they split up, Kelsey's hair changes constantly between shots.