 In her room after almost getting killed in the tub, Nancy looks at  herself in a mirror and says, "Oh God, I look 20 years old.". Many  viewers find this humorous, thinking that Heather Langenkamp was 20  years old at the time of the movie. However, on the DVD audio  commentary, shes quoted as saying, "I was 18 or I was 19. I cant  remember."