While Nathan and Haley are in the mansion, as the lightning flashes, Haley's scarf is hanging at the sides of her neck. When the lights go off, her scarf is wrapped around her neck. When the lightning flashes again, her scarf is back hanging at the sides of her neck again.
When Brooke and Lucas are arguing outside in the storm, Brooke's hair changes between shots. It goes back and forth from being stuck to her cheek and forehead to straight down beside her face with bangs.
When Haley is putting her scarf back on after Nathan tells her she can't go to Duke, it is around her neck, then not, then around again and not, it happens while the power goes out.
After Haley tells Nathan that she is going to Duke, and he says he doesn't want her to and she starts freaking out and then puts her sweater and scarf back on. Now when she puts her scarf on for the first time it appears she threw it over her shoulder and in the next shot it doesn't, the shot switches to Nathan and back to Haley and her scarf is around her neck again, and this happens one more time when the lights go out. The first time a flash of lightning occurs to where you can see Haley, her scarf is down and in the next flash it's up again.
During the scene in which Haley is in the house with Nathan and is about to leave after he says that he doesn't want her to go to Duke (and later says its because he wants to go to Stanford), she puts on her ruffle scarf and during their conversation the scarf position changes multiple times between scenes from being wrapped around her neck to just dangling down around her neck.
When Payton is going to see her birth mother after the albums release It is made clear she is driving alone, However in the rear shot form the car you can clearly see the hand of a crew member.