During the song "Stick to the Status Quo" right after Gabriella says "Because of the callbacks? I can't have people starring at me I really can't." And Sharpay starts to head towards the stairs. Then everyone starts to dance and in the background you see Sharpay standing on the balcony where she was before she started heading for the stairs. It shows some of the cafeteria people and the next scene Sharpay is halfway down the stairs. How could this be?