She plays a "feisty twentysomething" who falls in love with her therapist in the film, directed by David Green. He predicts a long and successful movie career for the former Spice Girl. Mr Green said today: "She can add a lot of her own personality to the role without actually playing herself. I don't want her to play Geri Halliwell but I don't want her to stretch into serious Chekhovian or Ibsenian drama."