In 2014, Nicole Kidman said that the only time she has gone method and stayed in character throughout a shoot was during this production.
Nicole Kidman improvised the dance scene between her and Zac Efron. Efron described filming the scene as "the moment I became a man".
Nicole Kidman has said that she will never reveal the amount of authenticity in the scene that features urine.
Nicole Kidman created the "trashy" look of Charlotte herself, as the budget lacked money for a make-up assistant. This was the first time Kidman did her own make-up on a film.