 Margot Robbie auditioned for the role of Donna in 2008 . The actress believed that she had performed badly in the audition and decided to leave for a five @-@ week snowboarding holiday in Canada . Robbie had been in Canada for two days when she received a phone call telling her that she had been successful and that she had to return to Australia . Robbie began appearing on @-@ screen in June of that year . Donna was originally supposed to have a guest character role , but Robbie was promoted to regular cast member shortly after her debut . 
