Continuity mistake: In the scene where Penny overdoses, she's wearing calf-high tan boots. She falls over on the couch and dances with William while wearing them. When the doctor rushes in and forces her to vomit in the tub, however, her boots are suddenly gone.
Suggested correction: Penny is not wearing her boots when she dances with William, she is barefoot. Please rewatch. Penny falls backward onto the couch and rolls onto the floor. William phones the front desk for the doctor, then William helps Penny stand up (01:30:05). It cuts to several shots at the graduation. Then, when it cuts back to William helping Penny dance and stay alert, Penny is quite barefoot (01:30:40). William had removed Penny's boots while offscreen, during the graduation shots.
