Kate: How many Lizzies does it take to screw in a light bulb? Hmmm, I don't know, but it only takes one to screw up a graduation.
In the scene where Lizzie's parents are seeing her off for her trip to Rome, she first walks away from her family after exchanging hugs and the legs of her pants are rolled up. She then turns around and walks back for a second hug with her mother and when she turns around and walks away from the family a second time, her pants are no longer rolled up.
When Ms. Ungermyer takes Ethen's headphones off he is listening to "Girl in the Band" by Haley Duff, Hilary Duff's sister.